Joseph married Sarah Green SEYMOUR on 12 Sep 1824 in St Leonards, Shoreditch, London. Sarah (daughter of William SEYMOUR and Susannah GREEN) was born in 1799 in Clapton, Hackney, Middlesex. [Group Sheet] [Family Chart]

1. William MASON was born in 1828 in Middlesex.
2. Ann MASON was born in 1833 in Clapton, Hackney, Middlesex.
3. Elizabeth MASON was born in 1835 in Clapton, Hackney, Middlesex.
4. Thomas MASON was born in 1837 in Middlesex.
5. John MASON was born in 1838 in Clapton, Hackney, Middlesex.
6. Mary Ann MASON was born in 1839 in Clapton, Hackney, Middlesex.