The sanctuary was extended by Johnston in 1905; the church, now a condominium, is the only nineteenth-century structure remaining in "Historic Dayton's Bluff".
The apparent connection with Kings County, New York is coincidental; other competitors were William J. Cuthbertson of San Francisco, B. G. McDougall of Bakersfield, and S. J. A. Preston of Los Angeles (Historic Fresno: William H. Willcox)
historylink.org
HistoryLink: the Online Encyclopedia of Washington State History; see also Heather M. MacIntosh, "William E. Boone (1830-1921)"; Jeffrey Karl Ochsner, "William E. Boone," in Ochsner, ed., Shaping Seattle Architecture: A Historical Guide to the Architects, (Seattle: University of Washington Press) 1994:16-21.
nytimes.com
query.nytimes.com
Christopher Gray, "Streetscapes: Readers' Questions", The New York Times, 1 September 1991, points out that Willcox was listed at a home address of 445 West 44th Street in 1863-64. (On-line).