1881 census - she was Mary H
Village of Springfield Gretna
William Stevenson 32 police constable b Kirkbean, Kirkcudbrightshire
Jane 32 b England
Mary H 10 b Kirkbean
James 6 b Dumfries
Thomas K 3 b Penpont
Jane A under 1 Month b Gretna
Gretna ED 1 Page 1 Line 19
You will need to lookup one of their childrens births on Scotlands People to establish Jane's maiden name
www.scotlandspeople.gov.ukThat will help find their marriage in either England or Scotland
If they married in Scotland - their marriage cert will show both sets of parents names plus mothers maiden name
If they married in England - it will only show their fathers names and occupations