On 3 Oct 1847 when Roelof was 35, he second married
Sophia Magdalena van Marle, daughter of
Derk van Marle (ca 1782-) &
Frouwkien Thurkow (ca 1790-), in Assen, Drenthe.
538 Born on 16 Jun 1818 in Assen, Drenthe.538 Sophia Magdalena died in Assen, Drenthe, on 3 Sep 1891; she was 73.538