Here's an interview with Coopersmith from awhile back, posted by Mike in 2020: https://hawaiifiveo.org/forum/showth...me-Coopersmith
Here were the episodes he wrote:
Season 1
Samurai
Season 2
Just Lucky, I Guess
A Bullet for McGarrett
Blind Tiger
Season 3
NONE
Season 4
Highest Castle, Deepest Grave
Wednesday, Ladies Free
3,000 Crooked Miles to Honolulu
For a Million, Why Not?
Didn't We Meet at Murder?
Season 5
Death is Company Policy
Death on Tantalus Mountain
Chain of Events
I'm a Family Crook, Don't Shoot!
Here Today... Gone Tonight
Will the Real Mr. Winkler Please Die?
Season 6
The Sunday Torch
Murder is a Taxing Affair
Why Wait Till Uncle Kevin Dies?
Murder With a Golden Touch
Killer at Sea
Season 7
Steal Now -- Pay Later
Welcome to Our Branch Office
Presenting... In the Center Ring... Murder
Diary of a Gun
Season 8
Murder: Eyes Only
McGarrett is Missing
Death's Name is Sam
Retire in Sunny Hawaii... Forever
Loose Ends Get Hit
Anatomy of a Bribe
Season 9
Nine Dragons
Assault on the Palace
Seasons 10-12
NONE
He did not write after season 9, for reasons I don't know.
Many of these are in my favorite 20 episodes.
Also, notice he really didn't write many dud episodes, which is equally important!
RIP Jerome Coopersmith