"United States Census, 1920," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MX9L-X61 : accessed 21 Jan 2014), Margaret Mcfarland in household of John Hebpner, Saint Marys, Elk, Pennsylvania, United States; citing sheet , family 585, NARA microfilm publication T625, FHL microfilm 1821564.