According to New Manx Worthies Richard Costain was b. 1839 at Colby, son of Richard and Elizabeth or Betsy. Richard Jun d. 1902, bur St. Luke's Baldwin.
Richard Jun m. Margaret Kneen of Croit e Caly in 1866 and they had issue 5 s & 2 d.
I believe I can claim a v. distant connection through the Gells and Hutchins of Dalby?? this would be through the Kneen line.