I have not found Hugh Gordon in my research, but I have found out quite a bit about my Gordon/Brady family since the post in 2005 so I will share that with you and see if it ities in with anything you have.
Firstly Patrick Gordon was the son of Owen Gordon and Rose Murray. They had two other sons I know of, John born about 1842 and Francis born about 1846. Because of the large age difference between Patrick and John, there must be more children. Rose and these three sons migrated to Scotland and died in Glasgow. I have not found Owen's death registration.
Margaret Brady was the daughter of John Brady and Margaret McNaught.
Now Patrick and his brothers had a lot of children between them, but not one of them is named Hugh, so it looks like it is not a family name for this branch of Gordon. One family name is Barty, Bartley or Bartholemew.