When Joseph Webb was born on 11 June 1837, in Crewkerne, Somerset, England, United Kingdom, his father, John Gosney Webb, was 21 and his mother, Harriet, was 16. He married Mary Ann Proctor on 17 June 1860, in St Pancras Old Church, Saint Pancras, London, England, United Kingdom. They were the parents of at least 4 sons and 2 daughters. He died before 1881, in Luton, Bedfordshire, England, United Kingdom, at the age of 42.