Il est marié avec Ida Oakley Taylor.
Ils se sont mariés le 22 septembre 1886 à Logan, Cache, Utah, il avait 22 ans.Source 5
BIOGRAPHY: The following will give additional information of the life of John; Journal of John Mills Whitaker; 'The Life and Times of John M. Whitaker' pp 125-331; 'John Mills Whitaker, Diarist, Educator, Churman' Master Thesis by Lyman Clarence Pedersen, Jr.
John M. Whitaker died 2/4/1960 and buried 5 Apr 1960 in Salt Lake City Cemetery (plot A-11-12-4-W)/ www.utah.gov