1841 census HO_107_1464/5_32b; Castletown _2_p27; Mill Street: Richard Corrin, 40, Joiner, Y; Elizabeth --do--, 38, Y; Elizabeth --do--, 14, Y; William --do--, 12; Y; James --do--, 8, Y; Thomas --do--, 1, Y; Ann Quine, 2m, Y.
The preceding entry is a Henry Corrin 35, also a Joiner, plus family. There is only one "separating slash" between Henry's family and Richard's, and the surname is continued with a "--do--" possibly indicating they shared the same dwelling. Did your Richard have a brother Henry?
JohnL