Mary joined John Milner's multi-disciplinary preservation practice in 1977 and was elevated to partnership in 1984. In 1989, the pair formed a new firm, John Milner Architects, to focus on design and architectural restoration and rehabilitation. Mary received a Bachelor of Architecture degree, Cum Laude, from Drexel University. Mary is a noted Architect with expertise in the restoration and rehabilitation of historic structures, and her primary focus is on larger-scale institutional, ecclesiastical, commercial, and governmental buildings representing a broad range of architectural styles and periods of construction. Her recognized expertise is in the management of complex projects including conditions assessments, feasibility analyses, formulation of preservation priorities, master planning for multiple phases and development of creative approaches to programming and design. A nationally recognized authority in the historic preservation field, Mary has served on the boards of numerous professional organizations including the National Trust for Historic Preservation, Preservation Action, National Historic Landmarks Committee, Partners for Sacred Places, Preservation Alliance for Greater Philadelphia, and Preservation Pennsylvania. Mary enjoys traveling to Europe, Africa, and Central and South America where she is a guest lecturer on historic architecture in those regions.