William H. Willcox (May 26, 1832[1] – February 1, 1929) was an American architect and surveyor who practised in New York, Chicago, St. Paul, Seattle, Los Angeles, and San Francisco.
[3] He served in the American Civil War with the 95th New York Infantry, December 1861 to September 1863, as a topographical engineer who prepared the well-known map of the battle of Antietam for Brig.
In 1884, Willcox published Hints to Those Who Propose to Build—Also a Description of Improved Plans for the Construction of Churches (St. Paul: Pioneer Press, 1884), which included a list of his most important projects to that date.
[15] Willcox arrived in California and established a practice in Los Angeles, where directories list his offices at 345 Bradbury Block.
[16] In 1896 Willcox entered a competition for the design of a new Kings County Courthouse[17] and was awarded the commission, though the Board asked the architect to revise his plans to eliminate a central dome and apply the cost savings to a ten-foot basement.