The Vernon Family

The Vernons
This is my main family name but it has given me the biggest problem.  They came from Scotland. There is a family story about a son marrying a servant girl and being in the army and him and his wife being killed in India around the time of the Indian Mutiny and leaving an orphaned son.  I have so far not been able to prove any of that.  Was it true or was it a story made up.  The son ended up in Lancashire.  His name was George Douglas Vernon and his marriage certificate gives his father as George Vernon, Officer in the Army but is that his original name or is it his adopted parent’s surname?
Some other surnames associated with the Vernon side of the family:
Hill, Ainslie, Jack