Identity:
He may have been the son or nephew of JW's cook, Mrs Cossins, or her brother-in-law, the decorator John Cossins.
Life:
Cossins acted as JW's servant, valet and messenger boy between approximately 1877 and 1879. JW seems to have become fond of him. When JW went bankrupt, Cossins found a job as steward on a P. and O. boat.