United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MWN2-636 : 16 July 2017), Elizabeth Cavenach in household of Patrick Cavenach, Lower Merion, Montgomery, Pennsylvania, United States; citing enumeration district ED 12, sheet 237B, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 1158; FHL microfilm 1,255,158.