Granahan Family History
Granahan Surname Meaning
Irish (Mayo): shortened form of McGranahan an Anglicized form of Irish Gaelic Mac Reannacháin ‘son of Reannachán’.
Source: Dictionary of American Family Names 2nd edition, 2022

View Census Data for Granahan | Data not to scale
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There are 2,000 census records available for the last name Granahan. Like a window into their day-to-day life, Granahan census records can tell you where and how your ancestors worked, their level of education, veteran status, and more.
Search Canadian census records for GranahanThere are 627 immigration records available for the last name Granahan. Passenger lists are your ticket to knowing when your ancestors arrived in Canada, and how they made the journey - from the ship name to ports of arrival and departure.
View all Granahan immigration recordsThere are 610 military records available for the last name Granahan. For the veterans among your Granahan ancestors, military collections provide insights into where and when they served, and even physical descriptions.
View all Granahan military recordsBetween 1951 and 2004, in the United States, Granahan life expectancy was at its lowest point in 1951, and highest in 1971. The average life expectancy for Granahan in 1951 was 37, and 72 in 2004.