"Agnes Watson, 1917". "United States Passport Applications, 1795-1925," database with images, FamilySearch; citing Passport Application, New York, United States, source certificate #72343, Passport Applications, January 2, 1906 - March 31, 1925, Roll 425, NARA microfilm publications M1490 and M1372 (Washington D.C.: National Archives and Records Administration, n.d.). Retrieved 2021-10-26.
"Agnes Watson, 15 Sep 1966". "United States Passport Applications, 1795-1925," datab"United States Social Security Death Index," database, FamilySearch; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing). Retrieved 2021-10-26.