Adolf Schaap was a son of Hartog Schaap and Johanna Gobas. He was unmarried and he earned his money as a barber, dealer in shoelaces and as a dance master in the dance school of his brother-in-law Cornelis van Rooijen in Beverwijk, who was married to his sister Julia Schaap. Adolf led a rather nomadic life, just like his father Hartog, who was originally a butcher by profession, but later provide…