Gisler

I am no longer positive, but i think there is a Lutheran genealogy site that you could google for.
Have you checked with the Ill and Wisconsin state sites for additional marriage certificates and counties for any death & birth certs?
I've found marriage certs for all my relatives in Wisconsin. 1880's/90's. The state marriage cert for Martha Geisler should have names of parents.

The county offices of where the Geisler's lived may have records if you were to go there personally and ask. There may even be a will, but that is iffy.

Jane

You can find genealogy in one of the right hand columns.

Maria