Alfred Marcel Jacobs (Amsterdam 1922 - Den Haag 2007) and his grand son David Bastiaan Jacobs (Rotterdam 2001)

Alfred Marcel Jacobs is son of David Philip Jacobs and Cato Jacobs- De Boers. Alfred Marcel Jacobs got two sons, Roeland Marcel Jacobs (1968 Den Haag) and Alexander Alfred Jacobs (Den Haag 1969)