Excellent....thank you all for your help!
KGarrard, you are a legend...thanks for finding the birth. I think I have found a marriage.
This is one of those that slip through the censuses. Emily is back with her family in 1891, listed as Butterworth, and I nearly missed the Hanson marriage, as I only found the 1881 census today, because she is not transcribed with her parents, even though she should be

Thanks again.
(she has another son I think, Arthur...haven't found his birth yet...how do you find them so fast KGarrard!?)