IGI has the children of John Christian and Elizabeth Wade as :-

Ann Ch 1841 Maughold
Robert Ch 1846 Andreas
James Ch 1840 Bride
Ellen Jane Ch 1843 Bride
Elizabeth Ch 1832 Andreas
John Ch 1830 Andreas
Margaret Ch 1825 Andreas
William Ch 1827 Andreas
Elizabeth B 1843 Bride

The 1851 census for Andreas has:-

John Christian 43 Ag. Lab.
Elizabeth wife 41
Margaret daughter 26
Elixabeth daughter 8
Robert son 5
Thomas Brew grandson 2 ( probably Margarets)
John Brew grandson 1 mth. ( same)

Margaret was born the year after marriage when Elizabeth was 15.

Len Faragher