+ Mina Florence (Cockburn) Cowie (b. 1902) ↑
   - Ronald Frederick Donald (Ron) Wilson ↑
   + Florence Mina Cockburn ↑
   + Martha Irene Cockburn ↑
   + Douglas Leonard Petersen ↑
   + Marilyn Maxime (Cockburn) Huffman ↑
Legend:
A number prefix represents generation number.
Dotted lines indicate adoptive or step relations.
Names in parenthesis are either aliases or names commonly associated with person
Last updated 4 May 2025 by Andrew Billyard
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