Thank you Geoff, It is interesting the history of naming a child with the mother's maiden name.  The research in tracing the family with more than one name is not too easy.  For example:         Robert Ainslie  -  Ann Ewing                  George Burnside Ainslie  b. 1827 So now, must I look for George's mother as Ann Burnside?  Roberts' parents were:               George Ainslie - Isabel Burnside.   This is why I thought George's (b. 1827) middle name, Burnside, was named after his grandparents on his mother's side.