Originally posted by autozen
You didn't mention whether the car still rolls easily after releasing the brake or whether you replaced the brake hoses. After that many years the hoses can occlude.
Until I replaced the front brake cylinders, the brakes were hanging up (corrosion of the pistons/sleeves due to long term storage moisture I suspect); took about 3 hours before they "relaxed" to the point where the car would roll.
But that portion of the problem no longer exists.