Re. Edward Gelling in the 1841 census, these entries are in Douglas, in Brian Lawson's census indexes:
www.iomfhs.im/lawsons/census/c41-g.html
Surname Forename Age Parish Piece Folio Page
GELLING Edward 40 Dou 1465/8 26 10
GELLING Edward 37 Dou 1465/5 4 4
The Edward aged 40 is under Gilling on the Ancestry index, in Bond St., 40, grocer, with Margaret 10, & Sarah 15.
The one aged 37 is a shoe m. in King St in a list of people with other surnames.
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