Hi Marie: the page I accessed for St. Joseph's Marriages was found at http://freepages.genealogy.rootsweb.com/~reinsel/okeefe/stjm...
This site was good in Jan of 2001; I do believe county Tipperary is correct.
I didn't find any connection to the KEATING surname, but plenty to the name Margaret ROACH and John TOBIN.
The first Margaret ROACH and John TOBIN were listed on the St. Joseph's Marriage records. They married June 1, 1834 and witnesses were Alice WHALEN and Anna DALY.
I'm not sure if this is the same John TOBIN, but I also found a John Robert TOBIN, born in Mulllinahone, county Tipperary in 1809 who was married to Margaret ROACH. They emigarted to Rutland Township, IL, which is near Kane Co. The TOBIN name was listed as one of the founders of the northeast part of the County (from the Historical Encyclopedia of Illinois edited by Newton Bateman, LLD and Paul Selby AM and the History of Kane Co, edited by Gen John S. Wilcox, Chicago; Munsell Publishing Co, 1904, pp 699-702 (and by the way, my sister lives in that county.)
I also found John TOBIN and a Margaret ROACH from a report of ship passengers on board the Barque "Louisa" which sailed from Liverpool, England to Baltimore, MD on 30 May 1834. Margaret ROACH was 26 years old and John TOBIN was 25.
Another TOBIN----Maria TOBIN--was a witness to the wedding of Patrick C. HIGGINS and Bridget ROACH on 10/15/1867 in Madison, Dane Co, WI (These are my relatives)
A John TOBIN signed as a witness for my gggrandfather to become a citizen of the USA dated 28 January 1871 from Dane Co, WI. His name was James ROACH. The other witness was Thomas CASS.
I suspect Maria TOBIN and John TOBIN were related.
I also found a John TOBIN with a Amelia TOBIN and Thomas and Mary TOBIN (their children) listed in the 1851 British Census. John was 30 at the time and was born in IRE (no county listed). His wife and children were born in Birmingham, Warwickshire, England.
In the Illinois Census records from 1870 I found a Margaret TOBIN from Cook Co., p. 130, 9 W., Chicago, IL
Still another John TOBIN was found in an obituary from 10/21/1903:
John, the husband of Margaret TOBIN, uncle of Mrs. P. BARRON and John COONEY, native of Ahenure, Calen, Co. Kilkenny, IRE. Mass at St. Patrick's church, internment, Holy Cross Cemetery. (San Francisco Chronicle,), p. 17.
~~a second obit is from the same newspaper:
TOBIN, in this city 6/25/1903, Margaret, wife of John TOBIN, sister of Mrs. Mathew KERR, a native of IRE. Funeral at 8:30 am from residence of sister, Mrs. Mathew KERR, 25 Clara St to St. Rose's Church, mass at 9 am. Internment, Holy Cross Cemetery,) p. 12
While visiting Calvary Cemetery in Evanston, IL searching for one of my ancestors, I found two TOBIN markers:
Robert TOBIN, 1833-1893 and Edward TOBIN 1830-1900. The men may not be buried there since the cemtery was established in 1859. The graves may be memorial stones only.
I hope this helps!