Julia,
The ones I have a bit on are Edward Caine and Elizabeth Christian md 12 Jun 1826 Braddan

!CHR: 25 Jul 1802 - Douglas St Mathews Parish Christening Records FHL
Film #0106718 son of John Cain and Alice Cannon.

!MARRIAGE: 12 Jun 1826 - Braddan Parish Marriage Records FHL Film
#0106709 married Elizabeth Christian

!1841 Census Index: Douglas 8 3 12 Sand Street:
Edwarda Cain head married 37 baker
Elizabeth Cain wife married age 33
John Cain age 13
Elizabeth Cain age 11
Edward Cain age 8
Sarah Cain age 6
Robert Cain age 3
Isabel Cain 1 month
William Cain age 17

!1851 Douglas Census book District #9 Page #18 Entry #67 -73,Sand St:
Edward Cain head married age 48 Baker and Flour dealer born Douglas
Elizabeth Cain wife marrired age 43 born Douglas
Edward Cain son age 19 Baker born Douglas
Sarah Cain daughter age 16 born Douglas
Robert Cain son asge 13 scholar born Douglas
Alice Cain daughter age 7 scholar born Douglas

!1871 Douglas Derby Square
Edward Cain age 68 retired business
Elizabeth Cain age 63
Robert Cain age 31 Baker

He was ch 25 Jul 1802 Onchan s/o John Caine and Alice Cannon md 29 June 1793 Onchan