Hi - The Maughold parish register has William Illegitimate son of W Moore & Mary Corteen bapt 24 Jan 1830.
N.B "W" not Wm, although it probably was William.

I've looked up "W Moore" and Mary Corteen before, 9 March 2005: http://www.isle-of-man.com/cgi-bin/interests/genealogy/bulletin/index.pl?noframes;read=501716

There are a lot of details about the family and connections on the above thread, including
William & Frances (nee KENDAL) in Millom (1881).

Len, Mary Ann Illegitimate daur of Mary Corteen was bapt Maughold 9 Jan 1825.

Sue