Ocallaghan Family History
Ocallaghan Name Meaning
Irish (Cork): from Gaelic Ó Ceallacháin see Callahan .
Source: Dictionary of American Family Names 2nd edition, 2022
Get access to Ocallaghan family records.Start a free trial
View Census Data for Ocallaghan | Data not to scale
Census Records
There are 46,000 census records available for the last name Ocallaghan. Like a window into their day-to-day life, Ocallaghan census records can tell you where and how your ancestors worked, their level of education, veteran status, and more.
Search US census records for OcallaghanPassenger Lists
There are 10,000 immigration records available for the last name Ocallaghan. 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 Ocallaghan immigration recordsDraft Cards
There are 5,000 military records available for the last name Ocallaghan. For the veterans among your Ocallaghan ancestors, military collections provide insights into where and when they served, and even physical descriptions.
View all Ocallaghan military recordsCensus Records
There are 46,000 census records available for the last name Ocallaghan. Like a window into their day-to-day life, Ocallaghan census records can tell you where and how your ancestors worked, their level of education, veteran status, and more.
Search US census records for OcallaghanPassenger Lists
There are 10,000 immigration records available for the last name Ocallaghan. 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 Ocallaghan immigration recordsDraft Cards
There are 5,000 military records available for the last name Ocallaghan. For the veterans among your Ocallaghan ancestors, military collections provide insights into where and when they served, and even physical descriptions.
View all Ocallaghan military recordsBetween 1951 and 2004, in the United States, Ocallaghan life expectancy was at its lowest point in 1951, and highest in 1998. The average life expectancy for Ocallaghan in 1951 was 35, and 73 in 2004.
