Our Mary Ann Coady married Peter Cashen in Christian Co.
We know next to nothing about Martin. The IL State Archives marriage index 1763-1900 shows two Martin Coadys, one a Martin C. Coady who married Ella Harlan Cook in Sangamon Co on 15 Feb 1897, Vol.007 pg. 1897 and Martin Coady who married Barbara Cugler in Cook Co on 27 Jan 1889, Lic. #00135265.
Also in the index there is a Redmond Coady m. Mary Murphy in Sangamon Co. 18 Apr 1887 Vol. 006 pg. 0156.
I'd be more than happy to work with you to see if we can come up with any connections. This has been a most difficult family to track.