Thanks Sandra. I was hoping you would say mariner :) but I can see you're right.

I'm wondering if occupations were different from one census to the next or if I'm on the wrong track here.

I found a John Callister, 60, Peel, at Green (street?) 1861 listed as Blacksmith with son William, 22, mariner. Then again John Callister, 70, at Green, Blacksmith in 1871.

I have a marriage registries copy of William Callister and Christian Mylchreest June 6, 1865 that lists William's father John Callister as a mariner.

Any help appreciated. Diane