Hi - thanks very much for getting back to me. I've checked the Census records from 1881 to 1911 inclusive and her place of birth is shown as follows. 1881 - Scotland, 1891 - Swilland, Gloucestershire, 1901 - Scotland and 1911 - Longtown, Scotland.
Swilland is in Suffolk and there is a Jane Turner, born in 1849, in Suffolk. Having checked the 1891 Census form itself the entry 'Swilland' is clearly a mistake on the part of whoever transcribed it onto digital records as the form states place of birth as Glasgow, Scotland.
I haven't checked prior to 1881 as the 1871 Census shows her husband to be (James Beard) to be single, living in Lymm, Cheshire and working as a stonemason, so uncertain as to which one of many Jane Turner's she may have been.
Her son (James Edward Beard) my paternal grandfather, kept diaries from when he was very young and I have read through them all. Hardly mentions his parents but does say that his mother is Scottish. Beyond that I have no other information.
Am awaiting birth certificates for her two eldest children (born in Yorkshire & Cumbria respectively) to try and find out addresses where Jane and James were living when children were born. Key, I think, to finding out about Jane and her ancestors is for me to trace the marriage record. I have checked all of the England & Wales GRO 'Jane Turner' marriages for 1870 to 1874 and none of them are her and James. I remain convinced that they were married in Scotland.