According to The Place Names Of Wiltshire (English Place-Name Society Volume XVI) by J.E.B. Gover, Allen Mawer and F.M. Stenton, published by Cambridge University Press, 1970:
Warminster. Buckler’s Wood is said to be associated with the family of John Buckler, 1665 (J.J. Daniel, History Of Warminster, 1879).