Anne,
Here are the family in 1841.
Skidby, Yorkshire
George Train 45
Susanna Train 30
Thomas Train 6
Mary Train 2
Joseph Train 1
All born in the county of Yorkshire. George's occupation is not recorded on the census.
1861 Skidby, Yorkshire
George Train Head Mar 55 Parish Clerk Born Skidby, Yorkshire
Susanna Train Wife Mar 41 Born Beverley, Yorkshire
Thomas Train Son Unmar 26 Ag Lab Born Skidby, Yorkshire
1871 Skidby, Yorkshire
Susannah Train Head Wid 62 Drefs? Dress Maker Born Beverley, Yorkshire
Mary Train Niece 11 Scholar Born Skidby, Yorkshire
1881 Skidby, Yorkshire
Susanna Train Head Wid 72 Annuitant Born Beverley
Looking at the 1861 census it looks like Mary Train may have been the daughter of Robert Train born about 1827 Skidby.
If I can be of any further help, please let me know.
Best Wishes
CJL