Do you already have this marriage ?
England & Wales, FreeBMD Marriage Index: 1837-1915
about George Kelly
Name: George Kelly
Year of Registration: 1856
Quarter of Registration: Apr-May-Jun
District: Liverpool (1837-1934)
County: Lancashire
Volume: 8b
Page: 380
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England & Wales, FreeBMD Marriage Index: 1837-1915
about Anie Dunne
Name: Anie Dunne
Year of Registration: 1856
Quarter of Registration: Apr-May-Jun
District: Liverpool (1837-1934)
County: Lancashire
Volume: 8b
Page: 380
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The marriage certificate would at least give Annie Dunne's father's name.
Have you got the 1881 IOM census entry for Christian F Kelly 20, "Lady", with her sisters, Margaret A 18 Lady and Catherine P 17 scholar, all b Liverpool, with their unmarried Aunt C Kelly 61 annuitant b Castletown (presumably Catherine ?)
Jean C