Herman's operators' license shows his height as 7'6" and his weight at 380 pounds.
Mrs. Kingsley's car is a Triumph Spitfire.
Grandpa is reading the fictional 'Transylvania Gazette'. Nonetheless, there is a Transylvania County, North Carolina, where the real bi-weekly newspaper 'The Transylvania Times' has been published since 1931.
When the director says, "I haven't has this much trouble since I worked with Liz and Dick," he's referring to Elizabeth Taylor and Richard Burton.
The USD 10,000.00 settlement offer, in 1966, would be worth approximately USD 78,000.00 in 2018.