On 27 Sep 1667 [his mother] Elizabeth Mills Lady Coryton died. She was buried at Colebrooke Church, where her mural monument with Corinthian columns and scrollwork pediment survives.

Before 23 Aug 1680, the date of his burial at St Melanus' Church, St Mellion, [his father] John Coryton 1st Baronet (age 59) died. His son [his brother] John Coryton 2nd Baronet (age 32) succeeded 2nd Baronet Coryton of Newton.

On or before 30 Jul 1690 [his brother] John Coryton 2nd Baronet (age 42) died. He was buried on 30 Jul 1690 at St Melanus' Church, St Mellion. His brother William Coryton 3rd Baronet (age 40) succeeded 3rd Baronet Coryton of Newton.

On 06 Aug 1695 [his wife] Susanna Littleton died. She was buried at St Melanus' Church, St Mellion.

In 1709 Edward Littleton 2nd Baronet (age 77) died. His grandson [his former brother-in-law] Edward Littleton 3rd Baronet succeeded 3rd Baronet Littleton of Pillaton Hall.

On 06 Dec 1711 William Coryton 3rd Baronet (age 61) died. He was buried at St Melanus' Church, St Mellion. His son [his son] John Coryton 4th Baronet (age 21) succeeded 4th Baronet Coryton of Newton. His widow married, as the 2nd of his three wives, 29 October 1716, at St. Stephen's-by-Saltash, Sir Nicholas Trevannion, Commissioner of Portsmouth Dockyard, who died 16 Nov. 1737. She died 27 Sep 1719 and was buried 30 Sep 1719, at St. Germans.