I'm not connected to this Patrick Halahan and have no further information on him. Am posting this only for the benefit of anyone interested.
This is from the Des Moines "Iowa State Register" newspaper of Sunday, May 10, 1891.
"Died - PATRICK HALAHAN, 818 Lyon Street [Des Moines], Saturday morning, May 9, at 7:39, age 63.
The deceased was formerly street commissioner of the city and was a highly respected citizen. He leaves a family of seven children, nearly all of whom are married. The funeral will be Monday at 8:30 a.m., from east side Catholic church."