...
Biographical Directories:
Entry in Macmillan Encyclopedia of Architects (New York: Macmillan, 1982)
Entry in Biographical Dictionary of Cincinnati Architects, 1788-1940.
Obituaries:
Quarterly Bulletin of the American Institute of Architects, October 1903, death notice and chapter memorial resolution, p. 161, obituary pp. 166-68
...
Olmsted Archives, Frederick Law Olmsted National Historic Site
Division of Rare and Manuscript Collections, Cornell University Library
Olmsted, Frederick Law architectural drawings and plans, 1877-1927. Collection Number: 462
Copies of sketches, planting plans, maps, and general plans of gardens, parks, private estates, and portions of cities with material from various firms. Also "Ancestral Register of Frederick Law Olmsted, c. 1592-1878," and reports and brochures dealing with Olmsted.
For more information, http://rmc.library.cornell.edu
...