www.glenister.org 
Family history and 
one name study 
Glenister family tree relationships
How are we related?
Working it out
The relationship between members of a family tree can sometimes be confusing or difficult to determine. But there are some simple rules which can be summarised and applied using a simple technique.

If you want to find the relationship between two people - the subject and a relative - follow these steps using the table below:

  • Starting from the subject, work up the tree until you reach an ancestor in common with the relative.
  • Then starting from the common ancestor, work back down the tree to the relative.
  • The relationship is shown at the point corresponding to the relative.
.
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The table
      
             4ggf
            /    \
          3ggf    3ggu
         /     \    \
        2ggf    2ggu 1c4r
       /     \   \    \
      ggf    ggu  1c3r  2c3r
     /    \    \   \    \
    gf    gu   1c2r 2c2r  3c2r
   /   \    \    \   \    \
  f     u   1c1r 2c1r 3c1r 4c1r
 /   \   \    \    \   \    \
y     s   1c   2c   3c  4c   5c
 \     \   \    \    \    \
  x     n  1c1r 2c1r 3c1r 4c1r
   \     \   \    \    \
    gx   gn  1c2r 2c2r 3c2r
     \     \   \    \
      ggx  ggn 1c3r 2c3r
       \     \   \
        2ggx 2ggn 1c4r
         \     \ 
          3ggx 3ggn
           \
            4ggx
y - subject
s - sibling
f - father
gf - grandfather
ggf - great grandfather
2ggf - great great grandfather
u - uncle
gu - grand uncle
ggu - great grand uncle
2ggu - great great grand uncle
1c - first cousin
2c - second cousin
1c1r - first cousin once removed
1c2r - first cousin twice removed
x - child
gx - grandchild
ggx - great grandchild
2gx - great great grand child
n - nephew or niece
gn - grand nephew or grand neice
An example

For example, from my own family tree:

Don Glenister was my great grandfather's brother's son - what relation is he to me?

  • Start with me - y
  • Up to greatgrandfather - ggf
  • Up one more to 2ggf - the common ancestor
  • Down to ggf's brother
  • Down to his son Don - 1c2r

Don was my first cousin, twice removed

      
            
        2ggf
       /     \ 
      ggf    ggu 
     /         \  
    gf         1c2r
   /  
  f   
 /      
y  

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