| Year | Type | Name as Recorded | Location | Office/Status | Full Record |
|---|---|---|---|---|---|
| 1781 | Ordi(ordination) | Griffith, William | / | deacon | View |
| 1782 | Ordi(ordination) | Griffith, William | / | priest | View |
| 1788 | Appt(Collation) | Griffith, William | Rhoscolyn / Llanfihangel yn Cowyn Chapel | Rector | View |
| 1788 | Appt(Collation) | Griffith, William | Rhoscolyn / Llanfair-yn-Euball Chapel | Rector | View |
| 1788 | Appt(Collation) | Griffith, William | Rhoscolyn / | Rector | View |
| 1806 | Vac(natural death) | Griffith, William | Rhoscolyn / | Rector | View |
| 1806 | Vac(natural death) | Griffith, William | Rhoscolyn / Llanfair yn eubwll Chapel | Rector | View |
| 1806 | Vac(natural death) | Griffith, William | Rhoscolyn / Llanfiahngel yn howyn Chapel | Rector | View |