Joël van de Rhoer married Bertha van Geens on 17 June 1900. The couple had two children. At a very early age, Joël van de Rhoer had already become one of the biggest cattle traders in the north. In Meppel, his wealth earned him the nickname ‘De Rijke’ (‘the Rich’). For many years he chaired the Drenthe branch of the Dutch Association of Cattle Traders, in which capacity he also served on the execu…