Notes:

The mortality among the policemen this year was re-
markably high. George Gubbins, lock-up keeper at the
Harrison street station, died of cancer. (1881) from book:
"History of the Chicago police from the settlement of the community to the present time, under authority of the mayor and superintendent of the force"
http://www.archive.org/stream/historyofchicago00flin/historyofchicago00flin_djvu.txt

found this message on genealogy.com:
Dear Ronald
I wanted to reply to his message before I forgot. I have a photograph of George Gubbins b. Knocklong, County Limerick 1810, d. 1881 Chicago. The notation on reverse side states that he was a Captain of Police. George married a Jane O'Farrell, also of Limerick, and her probate records reveal that she had stepson Patrick Gubbins. Is there a connection?
David Barry
(email address doesn't work)
http://genforum.genealogy.com/cgi-bin/pageload.cgi?jane,o,farrell::gubbins::33.html

Family/Spouse: Jane O'FARRELL. Jane was born about 1814 in Limerick County, Ireland; died on 31 Mar 1886 in Chicago, Cook County, IL. [Group Sheet] [Family Chart]

1. James F. GUBBINS was born about 1842 in Ireland; died on 23 Mar 1907 in Chicago, Cook County, IL.
2. Mary GUBBINS was born in Jul 1842 in Knocklong, Limerick, Ireland; died on 17 May 1903 in Chicago, Cook County, IL.
3. William M. GUBBINS was born on 30 Sep 1843 in Ireland; died on 06 Aug 1891 in Chicago, Cook County, IL.
4. George GUBBINS was born about 1844 in Ireland.