- Born: 1610, Bedford, England
- Marriage (1): Dorothy Temple on 4 Jan 1634 in Odell, England
- Died: 1687, Parvenham, Bedford, England at age 77
- Buried: 15 Aug 1687, Parvenham, Bedford, England
Esquire of the Inner Temple.
Mentioned in the will of his Brother, Sir Thomas Alston, in 1678.
John married Dorothy Temple, daughter of Sir John Temple Knt and Dorothy Lee, on 4 Jan 1634 in Odell, England. (Dorothy Temple was born on 17 Oct 1616 in Alsworth, Wiltshire, England, died in 1668 in Parvenham, Bedford, England and was buried on 5 Dec 1668 in Parvenham, Bedford, England.)