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Census Records
There are 139,000 census records available for the last name O'sullivan. Like a window into their day-to-day life, O'sullivan census records can tell you where and how your ancestors worked, their level of education, veteran status, and more.
Search US census records for O'sullivanPassenger Lists
There are 42,000 immigration records available for the last name O'sullivan. Passenger lists are your ticket to knowing when your ancestors arrived in the USA, and how they made the journey - from the ship name to ports of arrival and departure.
View all O'sullivan immigration recordsDraft Cards
There are 14,000 military records available for the last name O'sullivan. For the veterans among your O'sullivan ancestors, military collections provide insights into where and when they served, and even physical descriptions.
View all O'sullivan military recordsCensus Records
There are 139,000 census records available for the last name O'sullivan. Like a window into their day-to-day life, O'sullivan census records can tell you where and how your ancestors worked, their level of education, veteran status, and more.
Search US census records for O'sullivanPassenger Lists
There are 42,000 immigration records available for the last name O'sullivan. Passenger lists are your ticket to knowing when your ancestors arrived in the USA, and how they made the journey - from the ship name to ports of arrival and departure.
View all O'sullivan immigration recordsDraft Cards
There are 14,000 military records available for the last name O'sullivan. For the veterans among your O'sullivan ancestors, military collections provide insights into where and when they served, and even physical descriptions.
View all O'sullivan military recordsBetween 1992 and 2004, in the United States, O'sullivan life expectancy was at its lowest point in 1998, and highest in 1997. The average life expectancy for O'sullivan in 1992 was 23, and 68 in 2004.
