U.S., Encyclopedia of American Quaker Genealogy, Vol I–VI, 1607-1943, database with images, Ancestry.com (https://www.ancestry.com: accessed multiple dates) > “Encyclopedia of American Quaker Genealogy Vol. II”; citing “Encyclopedia of American Quaker Genealogy, Volume II, William Wade Hinshaw, Thomas Worth Marshall (comp.), 1938, reprint, Baltimore, Maryland: Genealogical Publishing Co., 1969, 1991, 1994” [Transcribed and reorganized copies of original Quaker records.]
Additional detail for reference: Philadelphia MM (Bartram), p. 460
Comment: Source includes name (Kaleb [Elfreth]) in entry for 1747 marriage between his daughter and Isaac Bartram.