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Library Instruction Session for ACA 115: ECU Research Question

Library Instruction Session for ACA 115

ECU Research Question

Family tree

Explain the genealogical phrase “once removed” as it relates to family relationships.


Library of Congress subject headings: Genealogy.

Search Strategy: Search Credo Reference

“A first cousin once removed…is the child of one's first cousin” (Cousin, 2014)

Cousin. (2014). Collins English Dictionary. London, UK: Collins. Accessed from Credo Reference.

"Removed: When the word 'removed' is used to describe a relationship, it indicates that the two people are from different generations...The words 'once removed' mean that there is a difference of one generation. For example, your mother's first cousin is your first cousin, once removed…. This one-generation difference equals 'once removed' " (Relationship, 2015).

Relationship Terms. (2015). What is a first cousin, twice removed? Provo, UT. 
         Retrieved from

First Cousins Once Removed. (2016).  Research Maniacs.
         Retrieved from


In the example above, "Kate and Bob are first cousins once removed, because their common ancestors are  Adam and Eve, but Adam and Eve are great-grandparents to Bob, but grandparents to Kate. As you can see from the chart above, Tim and Emma are also first cousins once removed. Emma's mother is Tim's first cousin" (First, 2016).

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