John Thomas Dinan Jr.

May 10, 1933September 26, 2020

SCARBOROUGH – Capt. John T. Dinan Jr., M.D., whose service as a Navy surgeon spanned 41 years, died Sept. 26, 2020 at the Maine Veterans Home in Scarborough. He was 87 and suffering from the effects of a stroke earlier this year.

Starting his career in the Navy in 1962, Dr. Dinan served mostly aboard aircraft carriers, first on the Saratoga, the JFK and lastly on the nuclear-powered Theodore Roosevelt. The Navy awarded him several commendations and medals including earning his Surface Warfare Officer, SWO, something extraordinary for a medical officer. He retired at 71 from the Navy in 2003 with the rank of captain. Dr. Dinan was born in Detroit in May of 1933. In 1942, he moved with his parents, John and Zoe (Wollenberg) Dinan, to Bloomfield Hills, Mich., where, with a school friend, he soon became a passionate model airplane builder and muskrat trapper. Bloomfield Hills was then still a small rural town; his high-school graduating class consisted of 27 boys and three girls.

As an undergraduate at Dartmouth College, he expanded his outdoor interests with the Dartmouth Outing Club, perhaps at the expense of academic endeavors. He graduated on-time in 1955, however, and went on to medical school at the University of Michigan, following in the footsteps of his maternal grandfather, Dr. R.A.C. Wollenberg. He was secretary of his 1955 Dartmouth Alumni class.

Dr. Dinan began his medical practice in Portland. In those early years he also played semi-professional football for the Portland Seahawks. He eventually continued his medical career on active duty with the Navy. Throughout his life he sought adventure, and among his first naval experiences was an expedition in 1963 to Antarctica aboard an Icebreaker, the USS Glacier. He did several tours in the Persian Gulf during Desert Strike as well participating in several actions including Mogadishu aboard the Pelelui and another harrowing incident aboard the Saratoga, where he saved several sailors while risking his own.

With age, the former trapper turned decoy collector. He was Ducks Unlimited Chairman of Maine and was an advocate for several other conservation efforts. He was a lifelong active outdoorsman and sportsman. He loved sea duck hunting and lobstering aboard the “Eider” on Casco Bay, tuna fishing in Beaufort, N.C. and skiing Tuckerman Ravine, with a special fondness for annual deer hunts at the Dartmouth College Grant.

Dr. Dinan is survived by a daughter, Shannon, sons John III and Michael; three grandchildren, Cameron, Madelyn and Vivian; a brother, Dennis; and a companion, Joni O’Donnell Mahoney. His marriage to Marguerite Guinane ended in divorce.


  • Services will be at a Later Date


John Thomas Dinan Jr.

have a memory or condolence to add?

Charlie Koella

February 23, 2021

I was a classmate of johns in high school. That famous class of 27. John and I had the same birthdate. We always contacted each other on our birthday if possible. He was a great guy and the world was lucky to have him. After my retirement, I retired to the family farm in Michigan and John would come up and go deer hunting. During our years, we would meet for a lunch or a brew. He will be missed. Always a smile and a sharp mind.

Jack Kublin

December 20, 2020

How I hate to see the notice of the death of my former medical school roommate. Such a wonderful character, faithful friend, bright and intelligent student who finally opened the books the night before an exam and then passed it. I spoke with him earlier this year and he told me about his declining health.
May God bless and welcome you into his kingdom, John.

Jack Kublin


October 14, 2020


Betsy Taxiarchis

October 3, 2020

Family & loved ones,
Dad & I reminisced over some stories today
1- Dad & your dad we’re digging clams @ the flats I was there at age 3. Game warden showed up looked @ Dr Dinan “ you’ve not done much clam digging”
Looks @ Lou “ looks like you’ve got it”
Lou” yes, I worked with Dana Wallace @ Boothbay last summer~ no problems he left.
2- Dr Gove, Dr Taxiarchis go sea duck hunting. Told Dr Dinan “ be there @ 7 am” they waited until 7.30 took off. Far in the distance Dr Dinan on shore. They were divided in going back as ducks were amazing. They bagged their limit & went to shore.
3- Shannon & me little. Eating clams & Nantucket. I have pictures somewhere
4- 1968 nick& me sucking down clams @ Bramhall Field
Such good times
Decoys guns. Such fun

Take care
Your all in my thought

Dr Louis Taxiarchis

October 3, 2020

I had lots of good times with John , kids ,& peg @ their home ,& @ camp fishing & skiing
I shall miss him dearly
Wishing you kids the best.
May your Dad Rest In Peace
Dr Louis Taxiarchis

Jim Konkel

October 3, 2020

John was a true Conservationist. I first met him him I moved to Maine in 1987. My involved with Ducks Unlimited led us to many conversations about his decoy collection aa well as articles and book he had written. Duck Hunter extraordinaire!!!

On behalf of Maine Ducks Unlimited, Ducks Unlimited, Inc, and the entire water fowling community may his migration with our winged friends find him watching us from above.

Thank you John for all you did for waterfowl conservation!

Jim Konkel - DU Board of Directors

Anthony Michaud

October 3, 2020

Sorry to hear of your Dad’s passing. Many memories with him when we were kids in Bramhall Field. I still have the duck decoys he gifted to me. Prayers are with you all.
Anthony Michaud

Johnny Dinan

September 30, 2020

Captain Dinan

Johnny Dinan

September 30, 2020

I love you Doc

Ellen Merrill

September 30, 2020

My sympathy to Johns loved ones. I will always have nice memories of him. He was nice to me and my sons. We enjoyed time in Nantucket with him, the Dartmouth grant, and holiday meals, and he always had a treat for the dogs! He was very special and lived a full life with lots of adventures. We will miss him.