Hi Jean. Thankyou for your message. I do have masses of information on the Lidbury families of Somerset and Wiltshire, but I do not seem to have the baptisms of either of the Williams, 1694 Berkley or 1699 Warminster. I would be very interested to know your source material for these. I do have both of the William's marriages in 1724, but like you have no clue as to the parents. I do have a note in my research though, from another researcher, that William Lidbury married Mary Moss at Beckington, the son of Thomas Lidbury and Sarah Adams. Thomas and Sarah were married at Berkley 5.7.1694 , and Thomas was baptised at Warminster 31.1.1664.
The William that was born in 1694, is therefore probably not their son as Thomas and Sarah were only married in July that year (although not impossible of course), so if my fellow researchers information is correct, it is more likely to be the 1699 William that married Mary Moss. I do hope this makes sense, and sorry not to be of more help.
Dale