See http://homepages.rootsweb.com/~aherns/ahobit21.htm#06/02/200... for the obituary of a Roberta A. (Stout) O'Hern who left a sister in Ackley, IA. Her husband's name was Bernard, but the obit says they were married in St. Paul so I don't know if there is any other Ackley connection.

Dennis Ahern [no relation]
The Ahern Family Genealogy Website
http://homepages.rootsweb.com/~aherns/