Yes, I believe that that is the correct Henry, and Anne form the other posts has been incredibly helpful in helping locate his family.
I am in the Detroit area so not too familiar with Cincinnati. Your suggestion of Avondale would make sense since they died so much earlier than Henry, around 1849.
Do you know where the records for Avondale would be maintained? Is it connected with a particular church?
Thank for being so generous with your time and efforts--it is appreciated.