De Groot family visits Sonsbeek Park in spring 1939

Meijer de Groot (1897-1944) and his wife Sophia Swaab de Groot (1900-1944) owned a hardware and electrical appliance store on Rijnstraat in the city of Arnhem, The Netherlands. After being warned of a forthcoming round-up of Jews, the de Groot family left their home in Arnhem to go into hiding in November 1942. Louis (b. 1929) and his sister, Rachel (1927-1944), hid in several dozen places throughout the Netherlands. Rachel eventually joined her parents at their hiding place in Amsterdam, while Louis made it to the home of Dirk and Ann Onderweegs in Lemmer in January 1944. Rachel and her parents were denounced on April 8, 1944, arrested by a Dutch policeman who was a childhood friend of Meijer's, and sent first to Westerbork and then to Auschwitz where they perished. Louis stayed with the Onderweegs until August 1946 when he entered the Jewish Boys Orphanage in Amsterdam. He fought for Israel in 1948, briefly returned to Holland, and emigrated to the United States in 1950, where he married and had two sons.

Eva Haller, a girl from Vienna who stayed with the de Groot family on a Kindertransport to Holland, survived the war in hiding in Holland. She eventually settled in Nahariya, Israel where she raised a family and lived until the early 2000s.