Hello Sarah....

Welcome to Rootschat from me too.
In the course of doing my own tree I look at all possible scenarios even if it is only to rule that event out, and as you have already found out some things do come as a surprise.
So, not wanting to throw any spanners in the works etc this might be worth a mention.... from Derbyshire marriage index, there was this marriage that took place at Long Eaton.
Long Eaton St Lawrence - 1913
William Edward Walker & Lizzie Pidcock
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FreeBMD =
Marriages Sep 1913
Pidcock Lizzie /Walker Shardlow 7b 1163
Walker William E /Pidcock Shardlow 7b 1163
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Kind Regards
Sheila.