I've found a couple of ancestry users who have some details of the CORKE family which tie up with what's been researched and reported on here (thanks everyone

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The marriage between Ada's brother George CORKE (b. 1886) and Madeline DANKS can be confirmed and one of their daughters, Eugenie has a son still living. No other details for Ada though I'm afraid. This is under 'Lofthouse Family Tree' on the ancestry website
From another users tree, Ada's brother Henry Edward CORKE (b. 23-01-1882) married an Eveline DRUSE in 1921 and their 2 daughters have had 6 children between them and many grandchildren. Again, there's no new information on Ada. This tree is called 'Bamber' if anyone wants to take a look.
These 2 CORKE brothers would have been Ada's closest siblings in age
Ever hopeful, I have messaged both users in case they have additional information about Ada not included on the trees so will report back if anything turns up!