"United States Registers of Enlistments in the U.S. Army, 1798-1914", , FamilySearch (https://www.familysearch.org/ark:/61903/1:1:QJD5-BJQ5 : Mon Nov 13 22:29:17 UTC 2023), Entry for Napoleon B Holman, 15 Dec 1866.
"New York, Church and Civil Births and Baptisms, 1704-1962", , FamilySearch (https://www.familysearch.org/ark:/61903/1:1:FDL6-LQ8 : Sat Nov 18 10:31:31 UTC 2023), Entry for Holman and Napoleon B. Holman, 10 Nov 1888.
"New York, New York City Marriage Records, 1829-1938", , FamilySearch (https://www.familysearch.org/ark:/61903/1:1:2449-4XW : Thu Nov 30 13:28:20 UTC 2023), Entry for Eliphalet L. Holman and Rosina M. Williams, 17 Apr 1901.
"New York, New York City Marriage Records, 1829-1938", , FamilySearch (https://www.familysearch.org/ark:/61903/1:1:2449-832 : Thu Nov 30 13:28:15 UTC 2023), Entry for William John Francis and Ellen Holman, 24 Dec 1902.
"New York, New York City Marriage Records, 1829-1938", , FamilySearch (https://www.familysearch.org/ark:/61903/1:1:2449-L5V : Thu Nov 30 03:55:31 UTC 2023), Entry for Jeramiah J. Holman and Sarah Emma Burbank, 28 Feb 1905.
"United States Veterans Administration Pension Payment Cards, 1907-1933", , FamilySearch (https://www.familysearch.org/ark:/61903/1:1:K64B-PLX : Wed Nov 01 17:09:40 UTC 2023), Entry for Napoleon B Holman, 1907-1933.
"New York, New York City Marriage Records, 1829-1938", , FamilySearch (https://www.familysearch.org/ark:/61903/1:1:Q2CV-M2HM : Thu Nov 30 11:21:46 UTC 2023), Entry for William Calbo and Agnes Stywalt, 30 Dec 1925.
"United States, Social Security Numerical Identification Files (NUMIDENT), 1936-2007", database, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:6K42-5RZH : 11 February 2023), Napolean B Holman in entry for Jeremiah Jasper Holman, .
"United States, Social Security Numerical Identification Files (NUMIDENT), 1936-2007", database, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:6K9C-7P3Z : 10 February 2023), Napoleon B Holman in entry for Agnes Holman Stywalt, .