His WW I draft registration card, as imaged online at Ancestry.com, gives his name as Electious T. Caudill, his date of birth as 12 Aug 1874, his residence as Sandy Hook, Elliott Co., Ky, and his next of kin as Alta Caudill.

Her death certificate records Alta Caudill, age 55 years 10 months 20 days, born 14 June 1880 in Big Stone, Elliott Co., Ky, died 4 Apri 1936 in Haldeman, Rowan Co., Ky, married, wife of Elex Caudil, father Green Carter, mother’s maiden name Ella Clark, both born in Big Stone, Ky, cause of death generalized arteriosclerotic heart disease, informant Mrs. Bee Crum, Haldeman, Ky, burial in Carter Cemetery, Elliott Co., Ky.

1910 census of Elliott Co., Ky, precinct 8, enumerated 27 April, lists on p. 8A as family #130/133:
Caudill, Electious, 38, farmer; Alta, wife, 32, first marriage for both, married 8 years, mother of 2 children, 2 living; Arle, son, 6; Glenwood, son, 4. All born Ky Ky Ky.

1920 census of Boyd Co., Ky, Upper Ashland precinct, enumerated 24 Jan, lists on p. 9B as family #179/180:
Caudill, Electious L., 45, public school teacher, b. Ky Ky Ky; Alta, wife, 39, b. Ky Va Va; Arlie T., son, 16; Robert G., son, 14. Both sons born Ky Ky Ky.

I cannot find this family in the 1930 census.