Board of Directors


Ellen O'Brien, Chapter President, 2021

Ellen is originally from Cincinnati, Ohio and graduated from Vanderbilt University with a degree in Civil and Environmental Engineering. She was first introduced to preservation while interning at the Octagon House in college. After graduating, Ellen worked with Clark Construction in DC for two years before going back to school and getting a master's degree in Structural Engineering with a focus in Structural Forensics from Columbia University. During her time at Columbia, Ellen studied structural failures and did research on the prevention of structural collapses. She currently works as an engineer at Silman and is enjoying working on a wide range of interesting projects.

Tom Chmill, Vice President, 2021

Tom is a professional engineer currently working as a building enclosure consultant for Simpson Gumpertz & Heger (SGH) in Washington, DC. Originally from Pittsburgh, Tom graduated from Penn State in 2012 where he received a degree in Civil Engineering with a structural focus. He then went on to work for a large engineering and construction company in the oil and gas industry where he planned and executed complex projects across the Midwest and Northeast. Since joining SGH in 2016, Tom has found that his passion lies in the investigation and remediation of existing buildings and structures. His project experience includes and wide variety of historic structures ranging from Smithsonian Institution museums in Washington, DC to 19th century academic buildings on the University of Virginia's campus in Charlottesville, VA.

Naomi Doddington, Treasurer, 2021

Naomi is a Project Engineer with Consigli Construction Company working on rehabilitation projects with historic buildings, mainly for the Architect of the Capitol. She has a B.F.A. in Theatre Production with an emphasis on Set Design. Naomi then trained as a photographer and spent seven years running her own studio. In 2009, she closed her studio and spent a few years teaching high school and then decided to return to school herself. Having lived in Charleston, SC for many years, Naomi was exposed to Historic Preservation as a career field and found it fit her interests in history and architecture. In 2016, she received her M.S.H.P. from the joint Clemson University/College of Charleston Graduate Program in Historic Preservation. Her thesis was a deep-dive analysis of a Historic Charleston Foundation 1990's anti-gentrification initiative and its impact from a social, economic, and preservation perspective. Naomi first moved to DC to work with the National Parks Service's famed Heritage Documentation (H.A.B.S./H.A.E.R./H.A.L.S.) Program before transitioning to Project Management. She has served as co-chair of the Events Committee for two years and looks forward to continuing to support APT DC.


Allison Semrad, Secretary, 2021

Allison is a Project Engineer at Silman. She particularly enjoys her work on existing and historic buildings, ranging from conditions assessments to large adaptive reuse projects. Allison holds a MS in Historic Preservation from Columbia University and a BS in Civil Engineering from Stanford University. She received the Cleo and James Marston Fitch Prize in 2016 while at Columbia, for work studying Frank Lloyd Wright’s Taliesin in her home state of Wisconsin. She looks forward to becoming more involved with APT DC as chapter secretary.

Kathleen Maloney Lo, Board Member at Large, 2021

Kathleen is a preservationist, researcher, and writer based in Washington, D.C. She is passionate about the documentation of heritage resources and has had the opportunity to contribute to a range of projects for various entities. Kathleen holds an MA in International Affairs - Cities and Urbanization from the New School and an MS in Historic Preservation from Columbia University, where she served as managing editor of Future Anterior, a journal of historic preservation history, theory, and criticismShe has additional experience in nonprofit fundraising, membership, and program development for arts and education institutions in NY and DC. She has benefited greatly from the programming offered by APT DC and is looking forward to becoming more involved with the Chapter's current and future initiatives.


David C. Overholt, Board Member at Large, 2021

David is a Senior Project Manager for the Mid-Atlantic office of The Christman Company, based in Sterling VA. Forty years in the construction field provides a broad base of experience and knowledge to draw on. Current project: Russell Senate Office Building Exterior Envelope Repair & Restoration, a component of the United States Capitol Complex. The  building was designed in the Beaux Arts style by Carrere and Hastings. As Senior Conservator at Building Conservation Associates (BCA) and Senior Project Manager at Archa Technology, Ltd. (ATL), David Overholt brought years of hands-on experience in preservation building trades to the sister companies based in New York City.  Mr. Overholt was the Preservation Projects Director at the President Lincoln and Soldiers' Home National Monument, an Historic Site of the National Trust for Historic Preservation. For fifteen years, Mr. Overholt was the Restoration Project Manager at the Lyndhurst Estate, also an Historic Site of the National Trust. Mr. Overholt teaches HISP670, the Conservation of Historic Places, at the University of Maryland Graduate Program in Historic Preservation. He has collaborated on projects that include an architectural competition alternate winning design for the Women in Military Service to America Memorial at the gates of Arlington National Cemetery, and the documentation of St. Kolumba, the ruin of a Romanesque church in Cologne, Germany—the site of a new art museum. In 1994 he was the recipient of the National Trust for Historic Preservation President’s Award. 


Jean Stoll, Board Member at Large, 2019-2021

Jean is a Project Engineer at EverGreene Architectural Arts. After graduating from the Clemson & College of Charleston historic preservation graduate program, Jean came back to NoVA to work at Mount Vernon. She then spent time at Aeon Preservation and later started her own consulting firm, Signature Preservation. At EAA, she works in a wide range of roles on projects like the US Capitol, Cannon House Office Building, and the Jefferson Memorial. Jean’s experience bridges technical historic preservation treatment and on-site construction administration and quality control. She has been an active member of APT DC during her year as a member at large, co-chairing the EPSP Committee and serving as the APTDC liaison for the Historic Bridge Foundation 2020 conference. As APTDC continues to reach out to surrounding groups of preservationists, from West Virginia to Delaware, Jean is excited to help build these new APTDC relationships.

Hallah Abodaff, Member at Large, 2019-2021

Hallah Abodaff, PE, LEED AP, is a Principal / Senior Vice President at Loring Consulting Engineers and directs operations at Loring’s Washington DC office. Her strong technical engineering skills, combined with her collaborative approach as well as her enthusiasm for mentoring and fostering a diverse workplace have contributed to the growth of the firm. A lover of history, Hallah approaches her projects—many of which have national significance—with reverence. “For me, engineering is learning the past, anticipating the future, and executing what makes sense.” Her historic renovation and modernization projects include United States Supreme Court, Virginia State Capitol, and Michigan State Capitol.


Bill Marzella, 2020 Past President

Bill Marzella joined the APT DC board in 2016 as the Marketing Committee Chair, then serving as Treasurer for two years before moving to the Vice President position in 2019.  After seven years of experience at EHT Traceries, in 2019 Bill joined the Advisory Council on Historic Preservation as a Program Analyst and Liaison to the Bureau of Land Management.  Bill also serves as a Volunteer for the National Building Museum and is a member of the board of the Latrobe Chapter of the Society of Architectural Historians. Bill received an MA in Historic Preservation Planning from Cornell University and a BS in Architecture from the University of Cincinnati.

Bryan Fisher, 2019 Past President

Bryan is a registered architect and a Historic Preservation Specialist at GWWO, Inc./Architects. During his career, he has contributed significantly to numerous historic preservation projects including work at the U.S. Capitol, the National Archives, the Smithsonian Institution, the Arlington House, Gettysburg National Military Park, Shenandoah National Park, Abraham Lincoln Birthplace National Historic Site, Hampton National Historic Site, Washington College, the Maryland Historical Society, and many others. He received a BA in Historic Preservation from Goucher College and an M.Arch from the University of Florida. During his postgraduate work, he spent time in Mexico studying vernacular and mid-century regional architecture. He has moderated panel discussions at past Preservation Maryland conferences and was a guest speaker at the 2013 APT DC spring symposium.

Committee Members


Chris Berger, Emerging Professionals Committee, 2021   

Chris Berger, AICP, is a planner for the City of Gaithersburg, Maryland. Chris has a master's degree in historic preservation from the University of Florida. After graduation, he worked for a cultural resources management company that was contracted by NASA, and Chris conducted fieldwork at the Kennedy Space Center and contributed to HAER reports that documented the Space Shuttle Program. Before he embarked on a career in preservation, Chris received a journalism degree. He fuses his backgrounds in journalism and preservation by writing articles about unique historic places.  

Kim Daileader, Marketing Committee, 2021

Kim is a Historic Preservation Specialist with EHT Traceries and serves as a Senior Project Manager and the firm’s Lead of Technical Preservation Services.   She graduated with a Master’s degree in Historic Preservation from the Pratt Institute in 2012. After graduation she interned at Frank Lloyd Wright’s Fallingwater where she lived on the grounds of the National Historic Landmark and learned and executed rehabilitation practices throughout the property, including patching, stonerepairs, and repointing. She also received a nine month-NCPE internship with the General Services Administration Central Office.  She earned her Bachelor’s degree in Civil and Environmental Engineering from Villanova University in 2006, after which she worked at an engineering consulting firm in King of Prussia, PA.

Kayla Salmon, Events Chair, 2021

Kayla M. Salmon is currently an Associate Project Engineer in the Building Technology group at Simpson Gumpertz & Heger (SGH). She specializes in building enclosure engineering and consults on new and existing structures. Kayla attended Worcester Polytechnic Institute (WPI), earning her Bachelor of Science degree in Civil Engineering with a Minor in Architectural Engineering. She interned for the National Park Service’s preservation team at El Yunque National Rainforest in Puerto Rico where she surveyed and assessed multiple historic sites in the rainforest and created a 5 year repair and restoration plan. She has also worked on many high-profile projects all over the country, including Duke University, Marine Corps Base Quantico, Smithsonian Castle Building, and the Los Angeles County Museum of Art. Kayla has been an APT DC member since 2018 and is excited to continue her involvement.

 Amanda Asmus-Pierce, Events Committee, 2021

Amanda Asmus- Pierce is an avid local preservationist and antiques appraiser.  She has served on the Victorian Society of America board as Secretary and Vice President, Wingate Fellow, as well as founding member of arts advocacy programs in Philadelphia, Pennsylvania.  Amanda currently works at EverGreene Architectural Arts as a Conservation Technician on various landmark projects in the DC metropolitan area.  As a skilled records and artifact curator working in museum collections and with private collectors she enjoys information gathering and facilitating large groups within professional cultural heritage organizations. She’s holds a terminal degree from the Smithsonian in conjunction with the Corcoran College of Art + Design in History of Decorative Arts and Design History, as well as an Undergraduate degree in Art History and Archaeology,  and concentration from  SACI  in Painting and Fresco Restoration.  She lives in and Arts & Crafts Four Square in Baltimore with her husband and her small dog, affectionately named after a prominent Habsburg she admires.

 Charlotte Daum, Events Committee, 2021

Charlotte Daum is the Commercial Market Manager at Markon Solutions, where she works as a Project Manager in the private  sector.  With her Bachelor of Architecture from Virginia Tech and Master’s in Historic Preservation from SCAD, Charlotte has enjoyed the opportunity to work on a wide array of sites, many outside of the historic scope.  Charlotte first joined APT DC in 2014, and has since regularly served as a board member or volunteer.