This is a long shot for me and I hope it makes sense to you. I noticed you have both Doyle & Keating with an IL connection.

My ggm Elizabeth HEGNER's brother, George HEGNER [b.1858 - d. after 1920], mar. Kate McGINTY ca. 1882, and had at least 12 children b. in WI & MN.
Among George's surviving descendants were /are Alice HEGNER who married Lester KEATING, and also Annie M. HEGNER who married Cornelius L. DOYLE, & had at least one son, Leo C. DOYLE. Leo lived with the Keatings in Berwyn, IL in 1930.

Family story: One of George Hegner's daughters may have married a congressman, from an unknown state.
Any connection or suggestions? Thanks, BG