Roelof married Peeks Margijn Pieks in ~1761 in Westerbork. Margijn (daughter of Peeks Jan Pieks and Willems Jantjen) was born in Feb 1732 in Westerbork; was christened on 10 Feb 1732 in Westerbork. [Group Sheet]

1. Mulders Jantje was born on 10 Oct 1762 in Eursinge, Westerbork; died on 1 Mar 1839 in Westerbork.
2. Mulders Jan was born on 11 Nov 1764 in Westerbork; died on 7 Aug 1839 in Eursinge, Westerbork.
3. Mulders Roelofje Roelofs was born on 16 Oct 1767 in Eursinge, Westerbork; was christened on 18 Oct 1767 in Beilen; died on 15 Jan 1844 in Westerbork.