1900 Census of Wetaug, Pulaski Co IL
Name AgeAlfred E Heathcock 25 m 4 yrs
Amanda E Heathcock 23 m 4 yrs; mother of 2, both living
Edith M Heathcock 3 dau
Gertrude Heathcock 11/12 dau
Emma Lee Dooney 5 boarder
Lizzie B Evans 15 servant
1910 Census of Cario Ward 5, Alexander Co IL
Name AgeAlfa Heathcock 36 head place of birth: United States (also father and mother)
Ravinia Heathcock 33 wife (indicates 3 in column “number of years in present marriage)
Edith Heathcock 13 dau
Gertrude Heathcock 11 dau
Earl Heathcock 9 son
Lawerance Burke 5 step-son
James Heathcock 1 son
This census indicates that Ravinia (Lavinia in later census records and family tradition) was mother of James Heathcock. Also, it suggests that Ravinia was first married to a Burke.
Alfred Earl Heathcock filled out a WWI draft registration form on 12 Sep 1918.
26 At the time he was a barber and lived at 327 28th St. in Cairo IL. He reported his nearest relative to be Clara Heathcock. He was reported to be medium height, meidum build, with blue eyes and light hair.
I still can't find Alfred Earl in 1920 but I found Clara listed with her mother in Cairo IL:
Name Age
Harriet Simpson 63 head widow keeper of a rooming house
Clara Heathcock 43 dau married b Kentucky, parents both born Kentucky
Willa May Winn 23 grand-dau single
Rollo J Halle 23 boarder
Treva Halle 23 boarder
Katherine Halle 2 boarder
Note that it says Clara is "married" not "widow" like her mother. This tells me that Alfred Earl was still around somewhere but not yet found in the census. Willa May Winn was presumably Clara's daughter by her first marriage.