"England and Wales Census, 1871", database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:VBCN-PX8 : 30 September 2019), John Henry Airstone in entry for Henry Airstone, 1871.
"England and Wales Census, 1881," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:Q27Y-4PQ4 : 11 December 2017), John H Airstone in household of George Airstone, Thurgoland, Yorkshire,Yorkshire West Riding, England; from "1881 England, Scotland and Wales Census," database and images, findmypast (http://www.findmypast.com : n.d.); citing p. 21, Piece/Folio 4611/79, The National Archives, Kew, Surrey; FHL microfilm 101,775,294.