I am looking for death information for Leo Valtaine Flynn who was born on 19 Feb 1899 in Grant Twp, Winnebago Co, IA. He was the son of Martin and Nellie Flynn, both of whom were immigrants from Ireland. The 1915 Iowa State census reports that he belonged to a Roman Catholic church and had attended grammar school for one year; he had no education beyond that but reported on the census that he was able to read and write. About 1926, he married Josephine Mary Gordon who grew up in Hancock Co. The last record that I can find for Leo is 1930 when he and Josephine were living in Grant Twp. I would like to find his date and place of death. He seems to have spent most of his life in WInnebago Co, so this seems like a good place to search. Can anyone provide me with some help with this?

Thank you.
Ruth Hastie