Foster: son of James of Aberystwith, pleb., JESUS matric. 10 Mar. 1758 aged 17; BA 1761; MA 1764; V of Tiddenham, Gloucs., PC ST Arvans, V Trelleck with Penalth and Chepstow, all Monmouthshire; died 13 Jan. 1802; father of William (CCED ID 163600).
| Year | Type | Name as Recorded | Location | Office/Status | Full Record |
|---|---|---|---|---|---|
| 1765 | Ordi(ordination) | Seys, William | / | priest | View |
| 1767 | Subsc | Seys, William | Chepstow Saint Mary / | Vicar | View |
| 1769 | Appt(Institution) | Seys, William | Tiddenham / | Vicar | View |
| 1769 | Appt(Institution) | Seys, William | Siddenham / | Vicar | View |
| 1788 | Appt(Subscription on Appointment) | Seys, John | St Arvans Free Chapel / | Curate | View |
| 1788 | Appt(Licensing) | Seys, William | St Arvans / | Perpetual Curate | View |
| 1788 | Appt(Subscription on Appointment) | Seys, William | St Arvans Free Chapel / | Curate | View |
| 1795 | Appt(Subscription on Appointment) | Seys, William | Trellage with Penalt Chapel annexed / | Vicar | View |
| 1800 | Vac(resignation) | Seys, William | Trelleck with Penalt / | Vicar | View |
| 1800 | Appt(Resignation) | Seys, William | Penalt / | Vicar | View |
| 1800 | Appt(Resignation) | Seys, William | Trelech / | Vicar | View |
| 1800 | Appt(Subscription on Appointment) | Seys, William | Trelleck with Penalt / | Vicar | View |
| 1802 | Vac(Death) | Seys, William | St Arvans / | Perpetual Curate | View |
| 1802 | Vac(Death) | Seys, William | Chepstow / | Vicar | View |