[Healeys] locked parking brake?

[retroagogo at comcast.net]

Hello,

       I'm new to the list.  I just received my dad's 60 BT7 and have a problem.  He parked the car 2 years ago in the garage with the parking brake on and there were no known issues with the brakes at that time.  When we tried to pull it out, the rear brakes seemed to be locked up.  Could this have been the parking brake locking up, and if so, is it easy to fix?  I don't really know much about the car yet, but plan to get to know it very well over time.

Mike