- [S3] Darby Day, July 3, 1865 Census Record, Provo, Utah, Church of the Latter Day Saints.
- [S4] Darby Day, September 1, 1850 Census Record, Provo, Utah, Church of the Latter Day Saints.
- [S5] Darby Day, June 14, 1870 Census Record, Provo, Utah, Church of the Latter Day Saints.
- [S6] Darby Day, June 4, 1860 Census Record, Provo, Utah, Church of the Latter Day Saints.
- [S7] Ship Manifest: Darby Day, by unknown photographer; unknown series. Online unknown url; unknown file name.
- [S8] Arrivals (a list of ships arriving in the Port of New York for May 11, 1848) (New York, New York: The New York Herald, May 11, 1848). Hereinafter cited as Arrivals.
- [S9] For the Flourishing City of New York (a series of advertisements) (Galway, Ireland: The Galway Mercury, March 18, March 25, and July 22, 1848). Hereinafter cited as For the Flourishing City of New York.
- [S14] Darby Day, Index of Cemetery, October 23, 1956, Dennis Day Files, Oregon, Wisconsin.
- [S19] Darby Day, June 8, 1880 Census Record, Provo, Utah, Church of the Latter Day Saints.
- [S179] California Death Index, 1940-1997, online <https://www.familysearch.org/search/collection/…>. Hereinafter cited as California Death Index, 1940-1997.
- [S253] Jeremiah Day, February 27, 1920 Census Record, Provo, Utah, Church of the Latter Day Saints.
- [S263] Oregon, U.S., Death Index, 1898-2008, online <https://www.ancestry.com>. Hereinafter cited as Oregon, U.S., Death Index, 1898-2008.
- [S346] Social Security Death Index: Cleophus Day King, by Social Security Administration; Social Security Death Index.; Catherine Mary Flinn, Washington D.C. Online http://www.ssa.gov/; Master File.
- [S357] James Day, June 19, 1880 Census Record, Provo, Utah, Church of the Latter Day Saints.
- [S536] Francis King, April 15, 1930 Census Record, Provo, Utah, Church of the Latter Day Saints.
- [S537] Francis King, April 15, 1940 Census Record, Provo, Utah, Church of the Latter Day Saints.
- [S540] James Day, June 16, 1900 Census Record, Provo, Utah, Church of the Latter Day Saints.
- [S544] Montana, U.S., County Marriages, 1865-1987, online <https://www.ancestry.com>. Hereinafter cited as Montana, U.S., County Marriages, 1865-1987.
- [S614] "U.S., Headstone Applications for Military Veterans, 1925-1970", The National Archives, Washington, D. C.; unknown repository; unknown repository address. Hereinafter cited as "U.S., Headstone Applications for Military Veterans, 1925-1970."
- [S619] James Day, May 4, 1940 Census Record, Provo, Utah, Church of the Latter Day Saints.
- [S626] Raymond Day, April 10, 1930 Census Record, Provo, Utah, Church of the Latter Day Saints.
- [S627] Raymond Day, May 7, 1940 Census Record, Provo, Utah, Church of the Latter Day Saints.
- [S628] [Unknown author], Obituary Delane Day (Escondido, Californis: The Times-Advocate, May 7, 1987). Hereinafter cited as Obituary Delane Day.
- [S629] Social Security Death Index: Donald Day, by Social Security Administration; Social Security Death Index.; Catherine Mary Flinn, Washington D.C. Online http://www.ssa.gov/; Master File.
- [S630] [Unknown author], Obituary Donald E. Day (Des Moines, Iowa: The Des Moines Register, March 21, 1988). Hereinafter cited as Obituary Donald E. Day.