Good luck with your search for Ida's grandchildren. Don't believe "answers" will come from Texas? Both were born after 1920 census and were living in Michigan by 1930. No record found of Ida's children (Ida, Fred, and Charles) in 1920-Texas. No public family tree even documents Ida's 12 Nov 1894 marriage to Charles G. Case in Butler, MO. Perhaps a search for Ida's obit might yield results?