Notes:

Birth:
Best candidate baptism: 29 Sep 1753 St. Stephen in Brannel (James & Grace) - she was probably the Grace WARNE who married James TRETHEWEY 5 Nov 1741 at St Stephen in Brannel, which would explain William's dau Grace Warne TRETHEWEY

William married Catherine Scolier on 30 Dec 1785 in St. Blazey, Cornwall, UK. Catherine (daughter of Richard Scolier and Mary Hill) was born before 1 Mar 1765 in St. Blazey, Cornwall, UK; died before 10 May 1815 in St. Ewe, Cornwall, UK; was buried on 10 May 1815 in St. Blazey, Cornwall, UK. [Group Sheet] [Family Chart]

Notes:

Married:
This is the only marriage of a Catherine to a Trethewey that fits with a Catherine born 1765. It also fits with St. Blazey, so that I think it is the correct Catherine for the 1815 death record, making her maiden name SCOLIER. Was this his second marriage?

1. Mary Trethewey was born before 10 Sep 1786 in Luxulyan, Cornwall, UK.
2. William Trethewey was born before 22 Jun 1788 in Luxulyan, Cornwall, UK.
3. Jennepher Trethewey was born before 10 Mar 1793 in St. Blazey, Cornwall, UK.
4. Grace Warne Trethewey was born before 3 Jul 1796 in St. Blazey, Cornwall, UK.
5. Richard Trethewey was born before 10 Mar 1799 in St. Blazey, Cornwall, UK.
6. John Trethewey was born before 9 Feb 1806 in St. Blazey, Cornwall, UK.