Hello Kay,
Did anyone sort out those families in the 1841 census for you? You wrote "2 families - John & William, Jane & Sarah as the adults. I don't have the 1841 original census so don't know which husband & wife go together or what their occupations were..". 1465/11 37 3 from BL's index.

This is the order in which they appear in the 1841 Rushen census scan.
At Ballaqueeney:
William Kelley 53 Farmer Y (= Yes, b.IOM)
Sarah Do (ditto) 45 Y
Cathrine Do 21 Dress M(ake)r Y
Ann Do 18 Y
John Do 17 Y
Sarah Do 15 Y
Margret Do 12 Y
Elizabeth Do 9 Y
Henrey Do 7 Y
/
John Kelley 48 Ag Lab Y
Jane Kelley 50 Do Y
William Waterson 23 M S Y
//

Sue