Richard married Mary Slany on 9 Feb 1618 in St Michael, London, England. Mary was born in 1597 in Worfield, Shropshire, England; died in 1664 in Herefordshire, England. [Group Sheet]

1. Thomas Caswell was born on 20 Oct 1618 in Somerset, Herefordshire, England; died on 9 Oct 1697 in Taunton, Bristol, Massachusetts.
2. Mary Caswell was born on 29 Jun 1620 in London Stone, London, England; and died.
3. Richard Caswell was born on 23 Feb 1622 in London Stone, London, England; and died.
4. Henry Caswell was born in Jul 1626 in St Botolph, England; and died.
5. Katherine Caswell was born on 11 Sep 1629 in London Stone, London, England; and died.
6. Elizabeth Caswell was born on 7 Dec 1632 in London Stone, London, England; died in 1635 in London Stone, London, England.
7. George Caswell was born on 23 Feb 1634 in London Stone, London, England; and died.