I have a fair amount of info on Dills in Oklahoma (having come from Texas). Two brothers, Jefferson D. Dill, b. 1861 and William E. Dill, b. 1863 married two sisters (who were in my surname family) Mary Elizabeth "Bessie", b. 1872 and Martha Augusta "Bertie", b. 1874, Snellings and their families..
I would be happy to share what I have and maybe someone can fill in some of my missing information.
Sincerely, Ruthie