Hi,
I've checked the Baptism index, and there's 5 children, not two!
Yes, there's John 3 Aug 1662) and Elizabeth (15 Dec 1664)
But if you try other spellings, you get
George (25 Nov 1657), John (2 Aug 1660), and Margaret (1 Sep 1659)
All children of George, a tapster
I did a bit more digging, and found this in Towcester:
George Hughson of Grafton sonne of Magarett Hughson and Dorathy Bryan of Northampton was published three severall Markett dayes in the Markett place in Towcester vizt on the 3rd, 10th and 17th of Feb in which time or since there was not any exception made against the same and Married on the 17th of Feb 1656/7
Hope this helps