Geertje was born on October 31st, 1909 in Meppel.1 Geertje's father was Albert Weerman and her mother was maria zwolle. Her paternal grandparents were Harm Weerman and zwaantien ensing. She had a brother named harm. She was the younger of the two children. She died at the age of 70 on February 1st, 1980.