Judith Chapman's appearance in this Season 2 episode on October 22,1981 came within 7 months of her first appearance in Season 1 "The Black Orchid" which aired on April 2, 1981.
Kenneth Mars was only 46 years old when he played the role of the elderly Joseph the caretaker.
The car the Navy officer arrives in at the beginning of the flashback to 1945 is a 1933 Ford phaeton.
Magnum eats boiled eggs at the King Kamehameha Club's outdoor bar.