William O'Keefe 26 yrs old, waiter, wife Ellen 24 yrs, Margerite 2 yrs, May 1 yr resided in 1905 in Manhattan, New York, New York, USA[1]
William O'Keefe 31 yrs old, wife Hellen 30 yrs, Margaret 7 yrs, Mary 6 yrs, William 4 yrs resided in 1910 in ward 12 Manhattan.[2]
William O'Keefe 42 yrs old waiter, wife Ellen 39 yrs, Margaret 17 yrs telephone operator, Mary 15 yrs telephone operator, William 14 yrs, Alice 11 yrs, Helen 9 yrs resided in 1920 [3]
William J. O'Keefe 24 yrs old accountant, wife Mary A. 18 yrs, sister Margaret 28 yrs telephone operator resided in 1930 in Bronx, Bronx, New York, USA[4]
Margaret O'Keefe married on 08 Jun 1935 in Manhattan to Raymond F. Hefferman. [5]
Shortly after her Marriage to Ray Heffernan she adopted the three [O'Keefe sisters ? Rogers nieces ? ] after, their mother and her sister, May's sudden death. ... She passed away about 1978. [6]
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↑ "New York, New York City Marriage Records, 1829-1940," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:246W-L1H : 10 February 2018), Raymond F. Hefferman and Margaret C. O'Keefe, 08 Jun 1935; citing Marriage, Manhattan, New York, New York, United States, New York City Municipal Archives, New York; FHL microfilm 1,685,177.
↑ First-hand information as remembered by Brian Heyler, Thursday, September 18, 2014. Replace this citation if there is another source.
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DNA Connections
It may be possible to confirm family relationships with Margaret by comparing test results with other carriers of her ancestors' mitochondrial DNA.
However, there are no known mtDNA test-takers in her direct maternal line.
It is likely that these autosomal DNA test-takers will share some percentage of DNA with Margaret: