Samuel Joseph Pos was born 3 January 1888 in Paramaribo and a son of Joseph Hendrik Pos and Jansje van West. He had a brother, Hartog Joseph, who has left Suriname for Holland in 1910 and arrived in Hoorn, where he established himself as a dentist at Grote Oost 2. His brother married in Winterswijk in 1913 Martha Elzas and in 1914 their son Herman was born.
On 18 December 1913 also Samuel Joseph P…