Association for Preservation Technology International
Izabella Nuckels, President, is an Austin-based architectural conservator. She teaches materials conservation in the University of Texas at Austin Historic Preservation graduate program and works as a conservator for the City of Austin's historic cemeteries. Izabella holds a BA in Urban Studies with a concentration in architecture from Barnard College and a MS in Historic Preservation with an emphasis in materials conservation from the University of Texas at Austin School of Architecture. Both of her theses explored the ethics and practicality of preserving the total work of art within the built environment, examining aspects such as space, color, and secondary domestic material culture. Izabella has particular interests in the conservation and preservation of vernacular resources, preventative maintenance, and historic color.
Andrew Billingsley, Vice-President & Webmaster, is a preservation technologist and Assistant Lecturer at Texas A&M University. Over the past decade he has been involved in the preservation, non-destructive evaluation, and documentation of historic sites and structures in the United States and abroad. He holds a Bachelor of Science degree from California State University, Chico in Concrete Industry Management, with a Minor in Business Administration, and a M.S. in Architecture at Texas A&M University, with a graduate certificate in Historic Preservation. Andrew is an active member of the Association for Preservation Technology International, the Construction History Society of America, the Archaeological Institute of America, the International Concrete Repair Institute, and the American Concrete Institute. He has also formally held a position on the Board of Directors for the Concrete Preservation Institute, where he was an Instructor and Project Manager for their field school on Alcatraz Island in San Francisco, California.
Katie Totman, Treasurer, is a historic preservation specialist with the City of San Antonio’s Office of Historic Preservation (OHP), and has been with their office since September 2015. Her role with OHP, along with maintaining the older home in which she lives, has helped Katie develop and grow her love of historic window restoration. Over the past three years, Katie has attended several hands-on wood window restoration workshops, restored the windows on her home, and led several local workshops and courses pertaining to the importance of window restoration and maintenance.
Lorelei Willett, Secretary, works with the Texas Historical Commission under the Certified Local Government (CLG) Program. Her work involves connecting CLGs across the state and training local commissions on important topics like community outreach, preservation planning and design review. She had also served as a senior planner with the City of Houston, and was one of the APT Texas Houston/Galveston Regional Co-Directors prior to moving to Austin. She received a B.A. in History from Texas A&M University before receiving a M.Sc. in Architectural Conservation from the University of Edinburgh in Scotland, UK. Lorelei also serves as the Social Media Coordinator for APT Texas.
Doris Eichburg, Immediate Past President, is an APTI member and principal at Building Diagnostics, Inc., an Austin engineering firm, where she specializes in analyzing construction failures and developing solutions for historic structures as well as commercial, residential and institutional facilities. Doris has a Master’s Degree in Construction Engineering and Project Management from UT Austin and currently participates in research conducted at the ‘The Durability Lab’ – a testing center established by Building Diagnostics at UT Austin. In addition to APT, Doris is a member of the Austin Association of Facility & Maintenance Engineers, Building Owners and Managers Association (BOMA), and Building Enclosure Council (BEC).
Regional Directors & Liasions
Nicky (DeFreece) Emery, Dallas/Fort Worth Regional Co-Director, has been practicing in the fields of architectural history, historic preservation and architectural conservation for over 15 years. She is the founder of Adaptǀre:Adapt Preservation and Conservation, LLC, and is a Lecturer at the University of Texas at Arlington College of Architecture, Planning, and Public Affairs. Previous positions have included Senior Architectural Historian and Conservator at URS/LopezGarcia Group, Conservator at Quimby McCoy Preservation Architecture, and Conservator at the Mission San Juan Capistrano. She received a Bachelor of Arts degree from Drury University in Springfield, Missouri, where she specialized in the study of Art and Architectural History. She continued her education at the University of Pennsylvania, where she received a Master of Science in Historic Preservation, with a concentration in building materials conservation, and at the University of Texas at Arlington where she earned a Master of Architecture. Nicky has performed conservation and preservation work in the majority of U.S. regions, including Save America’s Treasures and UNESCO World Heritage sites. Nicky is active in numerous organizations including the Association for Preservation Technology International, and is Vice President of the APT Texas chapter. She is also an active member of the American Institute for Conservation, the US Green Building Council, the American Institute for Architects Dallas Chapter, and Preservation Dallas.
Kerry Goelzer, Houston/Galveston Regional Co-Director, is an architect and founder of Kerry Goelzer Associates. Her work is focused on historic building renovations, adaptive reuse, and rejuvenating urban parks. Kerry is currently on the board of directors of the American Institute of Architects Houston Chapter, Houston Mod, and Rice Historical Society. She previously served on the Houston Archaeological and Historical Commission. In addition, she is a member and former chair of the AIA Houston Historic Resource Committee, and member of AIA TX Historic Resource Committee. She earned a B.A. and B.Arch from Rice University and received a Masters of Urban Planning from CCNY-NYC. Kerry’s favorite pastime is guiding architectural tours presented by Preservation Houston, Houston Mod, and AIA Houston.
Colleen Hannratty, East Texas Regional Co-Director, has worked with the Maya Research Program for the past 22 years and is co-director of the Blue Creek Archaeological Project and a member of the board of directors. She has conducted archaeological research in the southeastern and southwestern USA, Mexico, Peru and Belize. Her doctoral research is on the collapse and abandonment of Blue Creek, Belize. Colleen is an Research Associate with the Center for Social Sciences Research and an instructor of Anthropology at the University of Texas at Tyler. She is also the owner of Linda Vista Archaeology.
Priya Jain, Central Texas Regional Co-Director, is a registered architect with 12 years of professional experience working on design and adaptive reuse projects for academic and institutional clients in the United States and India.
Currently, an Assistant Professor in the College of Architecture at Texas A&M University, she is engaged in teaching and research that draws from various aspects of historic preservation practice and theory. Previously as a Senior Associate/Historic Preservation Expert at EYP Architecture and Engineering and an Associate at Goody Clancy Architects in Boston, she managed multiple renovations of nationally significant buildings and co-authored a number of Historic Structures Reports and Conservation Master Plans, including those for the Richardson Olmsted Complex in Buffalo and the Jewett Arts Center at Wellesley College. Other notable projects where she has played a leading role include restoration of Trinity Church in Boston and the adaptive reuse of St. Elizabeths Hospital in Washington DC for the federal government.
Priya has presented at various local, regional and international conferences including the Association for Preservation Technology International (APTI), ABX and the Northeast Sustainable Energy Association.
Alayna Jordan, San Antonio Regional Co-Director, is a Masonry Worker at the San Antonio Missions National Historical Park with the National Park Service. Before diving into stonemasonry professionally, she graduated with a B.A. in Architectural Studies and Chemistry from the University of Pittsburgh in Pennsylvania. There was always an admiration for architecture growing up near Chicago, Illinois, but it wasn’t until college that she noticed a current need for historic preservation. Since then, she is proud to have solely developed a local historic nomination for Schenley Park’s Tufa Bridges in Pittsburgh and co-wrote The Cultural Landscape Foundation’s What’s Out There Guide for San Antonio. Her scholarly background deviated into building trades when she noticed a disconnect between academia and hands-on professionals. She aims to bridge the gap through experiential learning acquired from her position and personal endeavor to restore and rehabilitate a 1930s Colonial Revival kit home.
Manogna Karuvu, Student Liasion, was an APTI student scholar in 2018. She holds a Bachelor’s in architecture from JNAFAU, India and a Master’s degree in Architectural Engineering from Politecnico di Milano, Italy. She has been involved in preservation technology and non-destructive evaluations of historic buildings through IR thermography since 2015 and has conducted thermal surveys in Turkey, Italy, India and USA. Research towards her doctoral degree at Texas A&M focuses on developing the methodology to apply Infrared thermography for historic masonry buildings in tropical climates like India.
Yung-Ju Kim, Emerging Professionals Liasion, after working ten years in corporate consulting industry, she shifted her career to architecture where she earned degrees in Master of Architecture and Master of Science in Historic Preservation at the University of Texas at Austin. Her interest includes adaptive reuse, material conservation, and community revitalization with an emphasis on cultural preservation. She is a Fulbright Scholar whose research documented the cultural landscapes and social injustice witnessed during the 2018 PyeongChang Winter Olympic development. Yung-Ju is employed at Lord Aeck Sargent and involved in rehabilitation project of the county probate courthouse.
Racheal Lute, Austin Regional Co-Director, is a lecturer in the Historic Preservation graduate program at The University of Texas at Austin. She is also a practicing engineer and is currently a member of the Construction Materials R&D Team at Katerra. She holds a Ph.D. and Master of Science in Civil Engineering, and Bachelor of Science in Architectural Engineering, all from The University of Texas at Austin.
Racheal has been involved in many aspects of architectural conservation and rehabilitation, from research to implementation. She was actively involved in concrete durability research for over a decade. This included laboratory research and related field work as part of various studies sponsored by TxDOT and the City of Austin. The focus of this research was evaluating the durability of various construction materials, particularly concrete, and developing mitigation techniques for material deterioration. Formerly, she also worked as a consulting engineer for architectural repair and rehabilitation projects in the Mid-Atlantic Region. She is particularly interested in materials conservation as it pertains to concrete and masonry structures.
Lori Martin, Austin Regional Co-Director, is a Graduate Student at the University of Texas at Austin, pursuing her Masters of Science in Historic Preservation. Since coming to Austin in 1980, her career has included time as a small business owner and management and business development work with an Austin law firm. For almost 15 years, she has focused her career on fundraising and development for nonprofits, specifically for organizations with a preservation focus. Lori worked with Preservation Texas and Preservation Austin in a development capacity. Most recently, she was the Director of Development for the historic Paramount and Stateside Theatres in Austin and was part of a team that raised over $3 million annually to support the preservation efforts and education programs of the theatres. Her development experience includes grant writing, special and annual appeals and the coordination and execution of major events. As a graduate student, Lori has served as Co-Events Chair of the Student Historic Preservation Association at UT and as the Student Liaison to the Texas Chapter of the Association of Preservation Technology. She received her Bachelor of Journalism from the University of Texas at Austin. Martin’s decision to return to school was fueled by a passion to explore the ways in which historic buildings can be used to enhance the fabric of our cities and maintain the character that is at the heart of every community.
Chris McInnis, Central Region Co-Director, is a consultant with Wiss, Janney, Elstner, Associates and a registered architect in the state of Texas. He has concentrated his professional career on historic material analysis, repair design and restoration services as well as failure investigation of existing buildings of various types. Prior to joining WJE 2015, he worked as an owner contractor for seven years in in southeastern Virginia. Chris holds a 5-year professional degree in Architecture from Virginia Polytechnical Institute and State University. In addition, he is a member of Preservation Austin, APTI, and American Institute of Architects.
David Preziosi, Dallas/Fort Worth Regional Co-Director, grew up in New Jersey and moved to Plano, Texas in high school before attending Texas A&M University where he received a Bachelor of Environmental Design, a Master of Urban Planning, and a Historic Preservation Certificate. After graduation in 1996 he moved to historic Natchez, Mississippi and served as the Assistant City Planner and then the City Planner. He became the Executive Director of the Mississippi Heritage Trust, a statewide preservation nonprofit organization, in 2002. His work there included education, advocacy, cultural resource survey work, and responding to the devastation wrought by Hurricane Katrina on historic buildings.
In 2012, he became the Executive Director of Preservation Dallas, an organization dedicated to the preservation and revitalization of the city’s historic places. Since his time at Preservation Dallas he has expanded programing and events, co-developed an Architectural Styles exhibit and booklet, and worked on the creation of the Pegasus Urban Trails Mobile App for downtown Dallas. David received his American Institute of Certified Planners designation in 2000 and was heavily involved in the Mississippi Chapter of the American Planning Association where he served as president. In addition, he has also been involved with the Center for Heritage Conservation at Texas A&M University and is on the board of the Old Oak Cliff Conservation League in Dallas.
D.J. Sevigny, West Texas Regional Director, is the Architectural Historian at Fort Bliss, Texas. His primary duties include materials conservation, design review, and preservation planning to ensure the Army effectively manages historically significant buildings and landscapes. He is also continuing to develop a unified Statement of Significance for the installation's extensive inventory of Cold War-era resources. Outside of Fort Bliss, he serves as Chair of the El Paso Historic Landmark Commission to assist in promoting good stewardship in the City's nine local historic districts. He holds a M.S. in Historic Preservation and a B.A. in Art & Architectural History with a concentration in Architectural History from Roger Williams University. In his spare time, D.J. loves working on his Mid-century house and fine-tuning his woodworking skills. He also has a keen interest in all aspects of coastal architecture ranging from harbor defenses and navigational aids to beach houses
Olivia Tarricone, Houston Regional Co-Director, is the Preservation Architect in the field services division of the National Trust for Historic Preservation, currently located at the Houston Field Office. She is a member of the American Institute of Architects and is a Registered Architect in the State of Pennsylvania. Olivia joined the National Trust in 2017, where she supports the National Treasures campaigns, the Fund for Sacred Places grant program, and advocates for quality design services on behalf of The Trust’s partner organizations. Before joining the Trust, she worked in the private sector on a range of projects from large hospitals to small preservation and rehabilitation projects in Philadelphia. She has a passion for the reuse of existing structures and brings along her expertise in planning, programming and design to the National Trust’s mission to protect significant places representing our diverse cultural experience.
Juan Velez, South Region Director, is an architect and building engineer from Spain. He earned the B.Arch. and the B.Sc. from Universidad Europea de Madrid. He also has a Master of Arts in Education from Universidad Internacional de La Rioja and an Associate Architecture degree from Escuela Universitaria de Arquitectura Tecnica (Madrid). He has worked as an architect and associate architect on historic buildings and Roman roads for Comunidad de Madrid and Junta de Castilla y Leon. He is currently the Historic Preservation Officer for the City of Brownsville, TX. Juan is a board member at the Cameron County Historical Commission and at the Brownsville Historical Association. He loves painting watercolors and water inks of historical buildings and research historical data in order to establish a coherent basis to rehabilitate the buildings and a deeper knowledge of his birthplace, so he can later explain why Brownsville is so unique.