I am descended from the Bennett family of Pythouse, Tisbury in southern Wiltshire and northern Dorset. From approx. 1740 to 1875 at least 10 members of this Bennett family had the surname Light as a middle name. I'm assuming that this started with the marriage between William Bennett of Fontmell Magna, Dorset to Martha 'Light',(not 100% sure that Light was her surname) ca 1740. This William Bennett, who died in 1756 (Margaret Marsh parish), also had the 'Light' coat of arms as an escutcheon on his own coat of arms carved on his tombstone. Anyone have any info or leads?