(1) He is married to Gerdina Rosenbrand.
They got married on October 13, 1909 at Rotterdam, Zuid-Holland, Nederland, he was 23 years old.Source 1
(2) He is married to Sophia Hendrika Kroll.
They got married on November 20, 1929 at Rotterdam, Zuid-Holland, Nederland, he was 43 years old.Source 2
grandparents
parents
brothers/sisters
children
Gustav Richard Johannes Hartwig | ||||||||||
(1) 1909 | ||||||||||
Gerdina Rosenbrand | ||||||||||
(2) 1929 | ||||||||||
Sophia Hendrika Kroll | ||||||||||