According to his WWII Draft Card, Edward's birth place was Missouri. I believe this may be him with parents in 1900.
Father, Isaac Ingram and mother, Sarah P. Slover (according to their marriage record)
And I do see this family in Oklahoma after 1900.
I will post what I found on his wife's parents separately.
1900 census:"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M3CM-2JV : accessed 1 March 2017), Edward Ingram in household of Isaac Ingram, Osage Township (west part) Lim Creek village, Camden, Missouri, United States; citing enumeration district (ED) 9, sheet 10B, family 188, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,240,845.