William Chettleburgh was born in Norwich around 1812 (from the 1891 census)
I don't yet know who his parents were, if he had any children! What we do know was that he was the uncle of our other William Chettleburgh. We suspect that he is an uncle by virtue of being the brother of Sarah Chettleburgh, who was unmarried at the time of giving birth to a William Chettleburgh.
He died on the 8 April 1892 at the ripe old age of 80 whilst still living in Lindley Street (exact address unknown, but assumed to be the Cricketer's Arms).
I believe that I have found him in the 1851 census, working as a butler in Bracondale. He is listed as married, but I haven't found his family yet.
There is a married mother in Kings Lynn called Jemima Chittleberg with a son called William (3), but the birthplaces are not given.
There is also an Elizabeth Chettleburgh working as a servant in Bracondale in 1851, and she is 23, however she is listed as unmarried.
There is a Harriet Chettleborough, a 32 year old governess, however she also is listed as unmarried.
There is also an Elizth Chettlebarrow, who is married and a servant, however at 70 years old in 1851, she is unlikely to be his wife.