|1860 U.S. census, Manhattan, New York County, New York (Ancestry.com)|
Mary was still alive in 1862 when her father opened an account in the Emigrant Savings Bank in New York City, since he stated he had four children by his "former wife." (Margaret died in November 1860 and David had remarried.)
Since Mary Bartley was not found in any 1870 census, she was probably dead or married. She was not buried in either of her father’s plots in Calvary Cemetery, so it is likely it was the latter.
Marriage records indexed by the Italian Genealogical Group include Manhattan 1866-1937 and Kings County 1871-1937, and those of the other boroughs from 1898 and later. These records do not include a marriage for Mary Bartley. Unindexed records have not been searched.
The indexed marriage records on FamilySearch reveal many brides and grooms whose mother’s maiden name was Mary Bartley; however, no proof that one of them is the person sought has been found.
11860 U.S. census, New York County, New York, population schedule, Manhattan, Ward 4, p. 34, line 14, dwelling N/R, family 294, David Battel; digital image, Ancestry.com (accessed 21 October 2014); citing FHL microfilm 803,789. HeritageQuest Online indexed the surname as Batlet.