Hi Geoff,
Found these baptisms in Warminster, not sure how many of them you already have:
Harriet 14 Jun 1807
William 23 Apr 1809
Elizabeth 14 Jul 1811
Mary 29 Dec 1813
John 4 Feb 1816
Jane 22 Mar 1818
George 10 Dec 1820
John Sly, son of Edward Sly married Sarah Brown 27 Feb 1838 Warminster
George Sly, son of Edward Sly married Susannah Ryall (aged only 18) 11 Apr 1843 Warminster
There is a family in Warminster in 1851, John Price and Eliza
HO107/1843/95 p 24 schedule 92
Brook Street
John Price age 41 Pauper Coachmaker b Warminster
Eliza Price age 40 Domestic duties b Warminster
Jane Price 15 Silk worker b Warminster
Frederick Price 12 Sunday School scholar b Warminster
Eliza Price 10 scholar b Warminster
Seth Price 7 scholar b Warminster
Mary Price 4 scholar b Warminster
Virtue Price 10 mo b Warminster
There is also this family:
HO107/1843/97 p28 schedule 107
John PRICE 42 Mason b ?
Elizabeth Price 29 Domestic Duties b Warminster
George Price 15 Mason's Labourer b Warminster
David Price 12 Scholar b Warminster
Julia Price 10 Scholar b Warminster
Harriet Price 8 Scholar b Warminster
Charles Price 5 Scholar b Warminster
Job Price 1 b Warminster
And the next schedule (108) has the following:
Edward Sly 63 Coal Hauler b Warminster
?Mary Sly 65 Domestic Duties b Warminster
Henry King 4 Grandson
James Alwood or Atwood 65 Millers Man b ?Wells Somerset
Please check the original if possible, for further details.
If you think this might be your family, let me know and I'll look a bit further.
Nell
PS I think I've also found John Sly and George SLy in 1851