He was born in Kristiania as a son of district physician John Georg Schlytter Stub (1870-1942) and Arnolda von Westen Sylow Kjeldsberg (1873-1955) [REF].
In 1923 Odd Stub married his first cousin Harriet Kjeldsberg from Trondhjem, a daughter of Francis Kjeldsberg and granddaughter of Claus Nissen Riiber Berg [REF].