"United States Census, 1930", database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:X7X4-WQN : Fri Oct 06 00:10:50 UTC 2023), Abraham Wollowick in entry for Samuel Wollowick and Paula Wollowick, 1930.
"United States Census, 1940", database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:K3B2-2ZM : Thu Oct 05 22:42:59 UTC 2023), Abraham Wollowick, son-in-law, in entry for Isadore Resnikoff and Lina Resnikoff, 1940.