Robert A. Ronfeld

July 12, 1944April 4, 2019

Robert A. Ronfeld, 74, of New London, passed away on April 4, 2019 at his home.

Bob was born on July 12, 1944 in Yakima, Washington to Henry and Lula A. (Balser) Ronfeld. After completing his PhD, Bob traveled from San Francisco to become a professor of pharmacokinetics at UCONN. Bob, a retired scientist from Pfizer Inc, loved life and his family. He was an eternal Red Sox and Patriots fan, and enjoyed travel, fishing, the beautiful outdoors and dogs. He was an extraordinary handyman and even rebuilt a 1977 Camaro engine. Bob and his wife Theresa were privileged to host many of their nieces and nephews over summers, through high school and undergrad as they completed their studies. Education was very important to him and, together with his wife Theresa, he established a family education fund to aid his nieces and nephews in completing college. He was a member of the board of directors of Habitat for Humanity, Lions International and the Emerson Theater Collaborative. He served as the treasurer and deacon for the Congregational Church of North Stonington and worked backstage for the Pfizer Players.

Bob’s philosophy was that ‘it is better to be lucky than smart.’ He counted himself very lucky to have a loving wife, Theresa (Rowland) Broach as well as his children, Nicholas Ronfeld and wife Sara of Florence, VT, Charles Broach of New York City, Candace Broach of Philadelphia, his nephew D'Andre Gooden, D’Andre’s fiancé Makayla Cunningham and their son Quincy Gooden of New London and his nephew Marcus Anderson of Providence, RI, as well as many other fine nieces and nephews. Robert Ronfeld was a man of exemplary character, a loving husband and a devoted father who will be terribly missed.

Visitation will be held on Monday, April 15, 2019 from 3PM until 5PM at the Congregational Church of North Stonington, 89 Main Street, North Stonington, CT 06359.


  • Visitation Monday, April 15, 2019

Robert A. Ronfeld

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Ian Williams

April 16, 2019

Bob had a presence and peacefulness that I admired greatly. He was modest, effective and posed a lovely sense of humor. Amongst the abnormal tensions of corporate life he was the example of decency. He helped me a great deal.

Dino Tudisca

April 14, 2019

I met Bob when he was a volunteer for Habitat. He quickly showed himself to be a great craftsman, but soon I learned how kind and thoughtful he truly is.
Without a doubt, he is the definition of a Gentleman. He was always a positive influence even when he was not feeling well. I will miss him tremendously.
Our deepest sympathies to Teresa and the Ronfield Family.

Rick Kistner

April 13, 2019

Karen and are were so sorry to learn of Bob's passing. We met Bob and Theresa via our involvement with the Pfizer players in 1988 and for several years afterward. The Ronfelds were one of the loveliest couples we have ever met and I know Bob's involvement in so many activities touched many lives -- and all for the better. God bless Theresa and the family and we hope you are comforted by the knowledge that Bob's memory will live on in the hearts of all who knew him.

Fred Falkner

April 10, 2019

Dear Theresa,

May God comfort you in your loss. Bob was a great person, a good leader, and an excellent scientist. I am certain that you will miss him dearly. His contributions to family, community, and the Drug Metabolism Department at Pfizer will not be forgotten. Jo and I wish you well.


DAndre Gooden

April 10, 2019

I will miss my Uncle Bob. He was always good even when no one was looking. A very responsible man with a good heart. The most selfless man I’ve ever met. Uncle Bob never accepted help because he never wanted to inconvenience anyone. He taught me to have faith in the process and to believe in myself! A very Logical man. He told me to only think about things in my control. The past 12 years I’ve transformed from a worrier to a warrior. I was truly lucky to have a relationship with him. And like he always said, it is better to be lucky than smart.

Hassan Fouda

April 10, 2019

Bob attended many of our fall tree of life conferences and found them eye opening and informative. He and Theresa traveled with me in Palestine- Israel, a fact-finding trip organized by the Tree of Life Educational fund. I also led them in a trip to Egypt, which they both enjoyed.

Hassan Fouda

April 10, 2019

I have always appreciated and respected Bob who was my colleague and for many years my supervisor at Pfizer and was one of our most accomplished scientists. As a research manager, Bob’s decisions were always based on scientific merits rather than political expediency. He was truly a person of honor and integrity and I will miss him.
Margie and I send our love and condolences to Theresa and to Bob’s loved ones.
May Bob rest in peace.

Tim Hagen

April 10, 2019

Dear Theresa and Family,

My deepest sympathies to you on Bob's passing. A wonderful and caring person. My thoughts instantly go to meeting Bob for the first time as he joined Pfizer. He was such an important addition to our science strength and led to building an incredibly strong Drug Metabolism Department with the addition of Mark, Phil, Larry, and many others. Bob was always available for consultation and support. An absolute pleasure to work with!

As our paths crossed after Pfizer, he would always greet me with the warmest calling of name, and it would be as if we had just been together the day before. (Even when we were in adjacent rooms at Backus.) He will be missed.

My warmest thoughts & sympathies,


Beth Sweeney

April 10, 2019


I’m so sorry to hear of Bob’s passing. You and your family are in my heart and prayers. I hope you find some comfort in your memories of him.


Larry Tremaine

April 9, 2019

Bob was instrumental in my moving from the midwest to a job and ultimately long career at Pfizer. My first supervisor and later manager for 15 years, Bob ultimately rose to head of the Drug Metabolism Department, Bob was an excellent mentor and visionary leader. During his leadership, the group grew and size and influence. While sustaining an excellence in drug development efforts, he greatly expanded the group's role in discovery teams, incorporating new technologies and experimental methods to predict drug ADME properties. As importantly, Bob was a caring and compassionate human being. I am fortunate to have worked with him.