The 1851 Census is now online at Ancestry.co.uk so I’ve been doing a little more digging into the Crawford Line.
We discovered that William Sherratt had married Eliza Crawford in 1859, and that on the 1871 Census Eliza’s father – James Crawford – was living with them at 16 Perry Street in Runcorn.
Searching the 1861 Census show James Crawford was then living with his wife Margaret, a few houses along at 105 Perry Street – along with three sons Jonathan (22), Henry (20) and Edwin (11). On this census James’ profession is listed as a labourer at the Soap Works, which was quite common in Runcorn at the time. William and Eliza Sherratt are listed living at 116 Perry Street – I don’t know if that means they moved to number 16 sometime between 1861 and 1871 or the street just got renumbered!
Going back to the 1851 Census James and Margaret Crawford are listed living at 107 Halton Lane in Runcorn with six children – William (21), Mary (20), Eliza (15), Jonathan (12), Henry (10) and Edward (1) (presumably Edwin on the 1861 Census). Also living with them is a Henry Crawford (29) who is listed as James’ brother – however both are just shown as labourers so still no clues to the biscuit connection.
However both the brothers and the eldest son William are shown as being born in Duddon, which is on the road between Chester and Tarporley, so the next step would seem to be to investigate the Crawfords of that area to see what we can find.