My name is Wayne van der Wees, I am a son of Vera Boham. My grandparents were Levi Boham (1892-1956) and Ruth Areros Patroli (1889-1985). They both lived in Surabaya, but were born in Sangihe Island and Menado, at that time the Dutch East Indies. Levi and Ruth had 10 children, five are still alive. The youngest was my mother, born in 1937 and the oldest child, Paulet, was born in 1911. My two aunts Louise and Thea Boham still live in Surabaya. Some family left for Holland just after the new republic was established, some others emigrated to the united States. I have no knowledge of a Justinus Israel Boham, but if you can provide some more information, I will be happy to try and see if my family knows more about Justinus.