Hi, I traced the crew in the 1881 Census for South Wales as viewed here it included the ages as well which helps a lot in any enquiry.

Vessel: "Lilly Miles"

Thomas COWLEY M 51 M Douglas, Isle of Man, England Master
John COWLEY M 25 M Douglas, Isle of Man, England Mate
Robert NICHOLL M 34 M Douglas, Isle of Man, England A B
James William COWLEY U 16 M Douglas, Isle of Man, England O S
Robert COWLEY U 14 M Douglas, Isle of Man, England Boy

I then checked my "Clip" CD for British Isles Mariners 1863 to 1913 it shows all above as crew from 1880 to 1884 , after this date is vague. But if you know they were alive in 1891 census and lost from there on. I suggest you check out this site www.iomshipwrecks.com or www.isleofmanshipwrecks.com this might point you in the right direction.

Brian .......www.kneen.com