« Reply #1 on: Sunday 12 November 06 12:38 GMT (UK) »
have you looked at Mike John's Monmouthshire BTs site? There are baptisms and marriages for the period you're interested in, including
4/6/1798 John son of Stephen and Sarah Beavan
5/6/1799 William son of Stephen and Sarah Beavan.
There's a possible for Stephen's baptism in 1775 under Bevan and possible siblings.
Cornwall: Allen, Bevan, Bosisto, Carnpezzack, Donithorn, Huddy, James, Retallack, Russell, Vincent, Yeoman
Cards: Thomas (Llanbadarn Fawr)
Glam: Bowler, Cram, Galloway, James, Thomas, Watkins
Lincs: Coupland, Cram
Mon: Cram, Gwyn, John, Philpot, Smart, Watkins
Pembs: Edwards (St. Dogmael's)
Yorks: Airey, Bowler, Elliott, Hare, Hewitt, Kellett, Kemp, Stephenson, Tebb