So far I have found your Lafayette S. Cash md Roenna H. Sargent on 30 Apr 1860 by Joseph Lane MG in Coles Co., Illinois. And: John Zering md. Margaret Susan Dick on 12 Dec 1861 by Gideon Edwards, Jdg in Coles Co., Ill.
Cash, Logan S. md. Zarring, Lizzie Marie in Edgar Co., Illinois on 05/20/1896 Vol. 0II/Page 0121
There are a lot of Cash's married in Edgar Co., Ill.