Sjelomo Hamburger was the son of Samuel Hamburger (a son of Salomon Hamburger and Jessie Hamburger-Hamburger from Amersfoort) and Marianne van Straten, (a daughter of Louis van Straten en Minna Hes from Deil).
Samuel and Marianne (usually named Jenny), lived at Fahrenheitstraat 4 in Amersfoort. They were married 25 August 1939 in Amersfoort and ther son Sjelomo was born there 22 January 1942.
After the birth of their son, Samuel and Marianne decided to go into hiding with Sjelomo, to escape the persecution by the nazis. However on 8 June 1944 the 2-year old Sjelomo was coincidentally found by a policeman in an attic room in Amersfoort, were he supposedly was hidden.
What happend to him afterwards is unknown. After his "arrest" at some point he might have been carried off to Westerbork, where he was deported with the last transport from Westerbork to Auschwitz on 3 September 1944. On arrival there, 6 September 1944, Sjelomo Hamburger was immediately killed. His parents, Samuel and Marianne Hamburger have survived the Shoah by hiding.
Sources: the file cabinet of the Jewish Council, registration cards of Samuel Hamburger and Marianne Hamburger-van Straten and Sjelomo Hamburger and the wikipedia listing of Jew Transports from the Netherlands.