B o a r d O f D i r e c t o r s 

Payal Vora, President

Payal is a Materials Engineer from Purdue University and a Historic Preservation specialist from the University of Texas-Austin, with nearly 10 years of experience in building envelope design, roofing, waterproofing, forensics, and building conservation/historic preservation. Prior to that she was a scientist in magnetics specializing in high performance magnetic alloys for aerospace applications. Payal is currently with Simpson Gumpertz & Heger (SGH) in San Francisco and was with Wiss, Janney, Elstner Associates, Inc. (WJE) prior to that. Her materials conservation work includes remediation of brick masonry contaminated after the BP Deepwater Horizon Oil Spill (Fort Livingston, Louisiana). Other projects in her historic preservation portfolio include the War Memorial Veterans Building, James Browning Courthouse Ninth Circuit Court of Appeals, and the Ferry Building (SF), the Stanford Memorial Church (Stanford), The LA Times Building (Los Angeles), American Bank Building (Portland), Bexar County Courthouse (San Antonio), Tribune Tower (Chicago), and the Lyndon B. Johnson Presidential Library and Plaza (Austin).


Jennifer Correia, Vice President

Jennifer is an Associate Principal for ARG Conservation Services, Inc. in San Francisco. She has experience working in both public and private sectors.  Prior to her current position, Jennifer was a project manager at the San Francisco Arts Commission, senior conservator at ARG Conservation Services, historic compliance coordinator at the Presidio Trust, and architectural conservator at Materials Conservation Co. in Philadelphia, PA.  Jennifer specializes in assessing historic and artistic materials, managing and planning mid to small scale projects, designing and performing hands-on conservation treatments, and implementing preventative conservation.  She previously served as Chair for AIC’s Architectural Specialty Group.

Jeff Caldwell, VP of Membership

Jeff has investigated several hundred structures in a wide range of projects. Investigations have involved conditions of distress and deterioration in a variety of materials, including concrete, steel, glass, and wood. The majority of his experience includes investigative work and design of repairs for structural and building envelope systems. Jeff has been with the firm Wiss, Janney, Elstner Associates, Inc. (WJE) for 18 years, with the most recent four years having settled in Los Angeles, California. Since that time, Jeff has been involved with the historic preservation of the following Los Angeles buildings: the Beverly Wilshire Hotel, the LA County Hall of Justice, and the John Anson Ford Theatre. Jeff Caldwell is a structure engineer and currently the Unit Manager and Associate Principal at WJE in Los Angeles.

Kevin O'Connell, Treasurer

Kevin is a structural engineer and currently an Associate Principal in the Los Angeles office of Simpson Gumpertz & Heger Inc.  He has more than twenty years of experience in new and existing building design including preservation of historic buildings.  Kevin’s award winning projects include performing arts centers, university buildings, historic train depots, one-room schoolhouses, large single-family residential estates, and even reconstruction of a ghost town. He is active professionally and served as Past-President of the Structural Engineers Association of Southern California, and currently a board member of the Structural Engineers Association of California.


Mara Thiessen Jones, Recording Secretary

Mara is an Architectural Historian and Preservation Specialist who worked for the Nevada State Historic Preservation Office in Carson City for the past nine years. During her tenure there, her expertise in interpreting and implementing the Secretary of the Interior’s Standards for the Treatment of Historic Properties helped guide proponents through an extensive array of preservation projects including those Hoover Dam (NHL). She has also reviewed several federal projects for compliance with the National Historic Preservation Act (NHPA). Mara is founding member and current president of the Nevada Architectural History Alliance (Nevada AHA). She completed her undergraduate degree in the History of Art at the University of California, Berkeley and received her graduate degree in Historic Preservation (Building Technology) from the University of Oregon.    

Stephen (Schäf) Schafer, Webmaster

Schäf is an expert in architectural photography with a practiced understanding of historic structures. He has completed documentary building and engineering surveys for architectural historians, municipalities and cultural resource management firms. His documentary photographs have been used to nominate sites to the National Register of Historic Places and as CEQA and Section 106 mitigation measures. He specializes in large format 5x7 and 4x5 film photography adhering to Secretary of the Interior's Standards for Architectural and Engineering Documentation, which are transmitted to the Library of Congress Historic American Buildings Survey (HABS), Historic American Engineering Record (HAER) and Historic American Landscapes Survey (HALS) collections. Subjects of his work include historic buildings, transportation and utility projects, bridges and range from a Cold-War stealth ship to an 1840 Adobe. Schäf is currently an adjunct professor at CA State University Northridge.    

Reuben Lombardo, Board Member

Reuben is a graduate of Otis College of Art and Design and holds a Masters of Fine Arts from UCLA, and is a key team member of Spectra Company’s Historic Division. His areas of expertise include Ornamental Concrete/Plaster, Granite/Marble, Tile/Stone/Ceramics, Historic Murals/Decorative Painting, Sculptures, Mold Making, Wood Restoration and Metals. Reuben's projects include the Hoover Dam in Boulder City, NV, The Hearst Castle in San Simeon, the Fine Arts Building in Los Angeles, the Millennium Biltmore Hotel in Los Angeles, The Santa Barbara Mission, and varied projects for the city of Santa Monica.

Alan White, Board Member

Alan has almost 20 years of preservation experience, ranging from hands-on restoration of medieval properties in the UK to his current role deploying emerging technologies for the non-destructive evaluation and measured survey of structures. As Director of Operations for GBG USA Inc, he leads the Los Angeles subsidiary of the UK-based forensic engineering company, taking care of business development whilst managing a range of technical preservation projects. With a background in engineering (University of Hertfordshire, UK, BEng. (Hons.) Mechanical Engineering) and expertise in data collection & analysis, Alan specializes in the documentation of the built environment, providing highly accurate and detailed construction arrangement and condition assessments. His notable projects include Hearst Castle in San Simeon, CA. Alan brings a broad network of professionals, a unique insight on preservation technology and an enthusiastic approach to educating the AEC industry.   

Kelly H. Wong, Ex-Officio

Kelly is currently Project Specialist for the Earthen Architecture Initiative, Seismic Retrofitting Project at the Getty Conservation Institute (GCI). For the past 16 years, she has worked on preservation projects in the US and abroad including Turkey, Italy, Bulgaria, Hong Kong, and Taiwan in the private sector, at public agencies, and for academic institutions. At the GCI, she is responsible for the development of construction documents including the seismic rehabilitation of two adobe structures in Peru, as well as facilitating its implementation with the Ministry of Culture. Before the GCI, Kelly was Preservation Technical Specialist and Preservation Enforcement Planner at San Francisco Planning Department, Preservation Project Manager at The Presidio Trust, and Project Manager at Architectural Resources Group. She has an architecture degree from UC Berkeley and master's in historic preservation (architectural conservation) from the University of Pennsylvania.   

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