I have no connection to this family that I know of.The 1900 U. S. census has Isaiah Idle listed as living with his daughter and son-in-law.
June 8, 1900
Concord Township, Louisa County, Iowa
Enumeration District Number 82Sheet Number 3
Line 12 41 42
Leslie B. Hendrix, head, white male, October 1868, 31, married7 years, Iowa, Indiana, Iowa, farmer
Iowa G. or Y.? Hendrix, wife, white female, August 1875, 24, married 7 years, 2 children 2 living, Iowa, Ohio, Iowa
Francis V. Hendrix, son, white male, September 1895, 4, single, Iowa, Iowa, Iowa
Merle L. Hendrix, son, white male, August 1898, 1, single, Iowa, Iowa, Iowa
Isaiah Idle, father-in-law, white male, November 1846, 53, widow, Iowa, Ohio, Ohio, house carpenter
Jessie I. Idle, sister-in-law, July 1879, 20, single, Iowa, Iowa, Iowa, servant
1880 census Isaiah is living in Louisa County, with his wife, Galena and two daughters.
Hope this helps you.