This portrait has an inscription on its back saying "Joseph Williamson, Esquire. Painted by Cornelius Henderson. August 1828. Liverpool." Again, the owl-like features are visible in the face.

Henderson was a good friend of Williamson and took up residence in a house Williamson built for him on the opposite side of Mason Street. One of the many anecdotes about Williamson has it that when he showed Henderson the new house, the artist complained that the huge windows let in light which was at all the wrong angles for a painter. This apparently incurred Williamson's wrath, but it was no doubt short-lived. One wonders whether the portrait above was painted there.