The name of Donovan's fishing boat - "Tillicum" - is Chinook slang for "friend."
Dean Jagger and David Janssen worked together every 10 years or so, dating back to There Were Four (1957). Later they would work together in The Mysterious Case of Lester and Dr. Fong (1976).
In this episode Dean Jagger's character, Tony Donovan, suffers from heart problems. Twenty-five years after this episode airs, Jagger will die of heart disease.
Tony's $2,000 estimate for the value of his catch would equal a little more than $18,000 in the year 2022.
The plane used in the rescue was a Grumman HU-16E Albatross. There were 466 built from 1949-'61.