FreeBMD has two marriages in Doncaster which might be worth a look:

Marriages Dec quarter (Oct/Nov/Dec) 1927
Surname First name(s) Spouse District Vol Page
Clarke Elizabeth A Davies Doncaster 9c 1906 [to Davies, Jesse]

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Marriages Dec quarter 1930
Surname First name(s) Spouse District Vol Page
Clarke Elizabeth Dunn Doncaster 9c 1763 [to Dunn, Thomas]

They would give her father's name and occupation, to see whether it matches the one in the IOM.

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