 His daughter, Jennett, married the surveyor George Evans (1780-1852) in 1798 in London, and Webb's grant was the bride's dowry.The couple arrived in Sydney in October 1802.Evans was initially given the position of store-keeper in charge of receipt and issue of grain at Parramatta, but in August 1803 was appointed acting surveyor-general in the absence of Charles Grimes who was on leave in England.