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The American Institute of Architects Archives
Architects Roster questionnaire, 1946 includes information about the firm and its principals. An information file about the firm contains correspondence with William E. Lehman, Jr., about the firm's history up to 1978 including a biography of his father William E. Lehman, a press release about an exhibit of the firm's past work which was donated to the New Jersey Historical Society, and a catalog from that exhibit (not scanned, copyright 1979 New Jersey Historical Society).
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