↑ "New York, New York City Marriage Records, 1829-1938", , FamilySearch (https://www.familysearch.org/ark:/61903/1:1:24ZX-15K : Thu Nov 30 13:33:47 UTC 2023), Entry for Arthur Alexander and Bertha Leinkauf, 30 Jun 1898.
See also:
First-hand information as remembered by Lindsay Resnick, Thursday, April 2, 2015.
"New York, New York City Births, 1846-1909," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:2W8P-YJ2 : 11 February 2018), Bertha Leinkauf Alexander in entry for Constance Martha Alexander, 25 Sep 1901; citing Manhattan, New York, New York, United States, reference cn 38243 New York Municipal Archives, New York; FHL microfilm 1,983,409.
"New York State Census, 1905," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:SPNS-YJD : 8 March 2021), Bertha Alexander in household of Arthur Alexander, Manhattan, A.D. 31, E.D. 02, New York, New York; citing p. 23, line 32, various county clerk offices, New York; FHL microfilm 1,433,112.
"New York, New York City Births, 1846-1909," , FamilySearch (https://familysearch.org/ark:/61903/1:1:2WZV-SWD : 11 February 2018), Bertha Leindauf in entry for Bertha Alexander, 30 Jul 1906; citing Manhattan, New York, New York, United States, reference 37284 New York Municipal Archives, New York; FHL microfilm 1,985,023.
"New York, New York City Marriage Records, 1829-1938", , FamilySearch (https://www.familysearch.org/ark:/61903/1:1:247D-JMK : Thu Nov 30 13:23:27 UTC 2023), Entry for Norman Daniel Cota and Constance Marsha Alexander, 1 Nov 1919.
"California, County Marriages, 1850-1953," , FamilySearch (https://familysearch.org/ark:/61903/1:1:K8VT-33W : 9 March 2021), Bertha Leinkauf in entry for Henry Isaac Myers and Barbara Alexander, 21 Aug 1942; citing Los Angeles, California, United States, county courthouses, California; FHL microfilm 2,114,961.
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