I'm interested in the whereabouts of
John COSTEAN/COSTAIN m. 1802 to Jane (nee CALLOW) chr. 1784 Maughold. They are not evident in the Maugold Census (1841-61).

The IGI gives two offspring:
John COSTEAN/COSTAIN chr 1803 &
Jane COSTEAN/COSTAIN chr 1810

Jane CALLOW chr 1784 is the daughter of my ancestor Simon CALLOW 1736- 1810, Maughold.