"Iowa, County Births, 1880-1935," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:V4DN-SW9 : 31 March 2020), Frank E Beach in entry for Ola P Beach, 21 Feb 1914; citing Perry, Dallas, Iowa, United States; county district courts, Iowa; FHL microfilm 1,034,111.