Dean Family History from Southern Ohio

I hit a brick wall very quickly when researching my Irish family history. I know that the Dean family line I am looking for is from Ireland because my great grandmother had an Irish accent.

Her name was Bessie (possible short for Elizabeth) Dean and she married Everett Taylor around 1914 in Hamilton, Ohio (Butler County). She was born in Ohio in 1893 and died there is 1960. I only have a small amount of information on her parents. There names were Curtis and Mary S.

Curtis may not have been his first name. I found a 1900 census report that says he was born in April of 1860 in Indiana, but his parents were born in Ohio. I know that he died before 1920 because Mary is living with Bessie and Everett in 1920 as a widow. I haven't been able to find a grave for him.

Any information on my Dean family line would be greatly appreciated!