Mabel was the daughter of Edward Hunter Craft & Hettie Bell Wolf.
Sources
"Iowa, County Births, 1880-1935," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:QJPZ-6RJS : 31 March 2020), Mabel Gertrude Craft, 16 Jan 1904; citing Iowa, United States; county district courts, Iowa; FHL microfilm 1,065,033.
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MGM8-8GW : accessed 19 October 2021), Mabel Craft in household of Ed Craft, Richland, Jones, Iowa, United States; citing enumeration district (ED) ED 69, sheet 10B, family 13, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 409; FHL microfilm 1,374,422.
"Iowa, County Marriages, 1838-1934," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:XJKR-MX1 : 18 October 2017), Frank Nass and Mable Gertrude Craft, 20 Jan 1920, Waterloo, Black Hawk, Iowa, United States; citing reference MR 36 P 607 No 16970, county courthouses, Iowa; FHL microfilm 1,548,422.