"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MP6G-DD2 : accessed 23 January 2022), Adolfo Molarella in household of Jennaro Molarella, Providence Ward 3, Providence, Rhode Island, United States; citing enumeration district (ED) ED 180, sheet 32B, family 656, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 1442; FHL microfilm 1,375,455.
Rhode Island State Census, 1915," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MMMS-VLN : 11 March 2018), Adolpho Molarelli, Providence Ward 03, E.D. 267, Providence, Rhode Island; citing p. Z, line 16, State Archives, Providence; FHL microfilm 1,763,989.
United States Census, 1940," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:KSJK-429 : 6 January 2021), Frank Morelle, Providence, Providence, Rhode Island, United States; citing enumeration district (ED) 6-80, sheet 16B, line 72, family 326, Sixteenth Census of the United States, 1940, NARA digital publication T627. Records of the Bureau of the Census, 1790 - 2007, RG 29. Washington, D.C.: National Archives and Records Administration, 2012, roll 3775.