I've searched all of the indexes online including the gendis system and the text indexes found online.

http://www.mdch.state.mi.us/gendisx/scripts/search.asp

Is it worth trying to order one via mail from MI or Cass County if it is not found on this search?

Also, I was wondering if there are any other resources to check. I am looking for the death record of Martha Warren, who died in Aug 1882. She was born in 1805 in New York.

She is buried in Lily Lake cemetery, and lived in Newburg for much of her life.