Harrigan at 1880USCensus.com - Find Harrigan data and the Harrigan surname contained in 1880 US Federal Census Record.

Harrigan at Surname Search Utility - Use this research tool to find Harrigan genealogy and the Harrigan surname contained in other family tree databases online.

Harrigan Genforum - A discussion forum for sharing Harrigan family obituaries, Harrigan queries, Harrigan ancestry, Harrigan genealogy, Harrigan GEDCOM's, Harrigan immigration, Harrigan cemetery inscriptions, etc.

Harrigan Discussion Forum - The Ancestry/Rootsweb discussion forum for the Harrigan surname which contains similar data to that of the Genforum tool.

To find Harrigan obituaries on Google:
 - Try this FIRST: use this search phrase "Harrigan obituaries" - don't use the quotation marks.  Note the plural word "obituaries".    Most online newspapers and funeral homes use this plural word on their obituary section.
- Then try these search phrases: Harrigan obits, Harrigan death notices, Harrigan obituary

To find Harrigan marriages on Google:
 - Try a search phrase that includes the surname, the word "marriages" and if necessary a location, for example: Harrigan marriages tennessee

To find Harrigan cemetery inscriptions on Google:
 - Use this search phrase: Harrigan cemetery inscriptions tennessee (change the location as necessary).