Roelef married Catryna Tryntihel about 1590 in Groningen, Groningen, Netherlands. Catryna was born in 1579 in Groningen, Groningen, Netherlands; died in 1634 in Groningen, Groningen, Netherlands. [Group Sheet] [Family Chart]

1. Tomys Swartwout was born on 1 Jun 1607 in Groningen, Groningen, Netherlands; was christened in Evangelical Lutheran Church, Amsterdam, Noord-Holland, The Netherlands; died on 3 Jun 1665 in Amsterdam, Noord-Holland, Netherlands; was buried on 15 Okt 1679 in Amsterdam, North Holland, Netherlands.
2. Roeloffien Swartwout was born in 1594/5 in Bunne-Winde, Drenthe, Holland.
3. Johan Swartwout was born in 1596 in Winde, Noordenveld, Drenthe, Netherlds.
4. Wijbrant Swartwout was born in 1597 in Winde, Noordenveld, Drenthe, Netherlands.
5. Trijntien Swartwout was born in 1601 in Winde, Noordenveld, Drenthe, Netherlands.
6. Annetje Swartwout was born in 1603 in Winde, Noordenveeld, Denthe, Netherlnds.
7. Swartwout was born in 1603 in Of Groningen, Gronigen, Netherlands.
8. Roeloff Swartwout was born in 1605 in Groningen, Groningen, Netherlands; died in 1634 in Netherlands.
9. Hermanus Rolef Swartout was born in 1608 in Groningen, Netherlands.
10. Aldert Rolef Swartout was born about 1610 in Groningen, Groningen, Netherlands; died between 1610 and 1710.
11. Lutgertien Swartwout was born in 1612 in Winde, Noordenveld, Drenthe, Netherlands.
12. Wybrandt Swartwout was born in Groningen, Netherlands.

Arent married Catryna Gerritsdottir in 1570 in Groningen, Groningen, Netherlands. Catryna was born in 1550 in Netherlands; died in 1608 in Aa kerk Straat, Groningen, Netherlands. [Group Sheet] [Family Chart]