Hi Elaine
Here’s the family in 1841 and 1851:
1841
St Anne’s Sq, Castletown
Ancestry’s transcription:
Name Age
John Kelly 45
Margaret Kelly 40
James Kelly 23
Catherine Kelly 20
John Kelly 18
George Kelly 16
Anne Kelly 14
William Kelly 10
Thomas Kelly 2
Charles Kelly 3 Mo
JK 45 High Bailiff
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1851
Parliament Square, Castletown
Ancestry’s transcription:
Name Age
John Kelly 56
Margret A Kelly 52
Cathrine Kelly 31
Margret A Kelly 25
William Kelly 21
Martha Kelly 17
Thomas C Kelly 12
Charles Kelly 10
Margret Quayle 56
Esther Radcliffe 35
Ann Clucas 13
JK 56 High Bailiff of Castletown
*******
It seems likely that Margaret Annie Kelly was known as Anne.
I can’t see a baptism in the IGI.
Jean C