HAROLD DIAMOND

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HAROLD DIAMOND

Harold Diamond passed away at the age of 90 on May 12, 2026 at the Simkin Centre in Winnipeg, Manitoba.

Harold was born in Winnipeg in 1935, and spent his childhood and teenage years in Fort William, Ontario. He was the son of Dr. J. Diamond and Nellie Diamond, and brother to Leatrice Cohen, Dr. Naomi Diamond, Gloria Nitzburg, and Selma Stein.

He attended the University of Manitoba, earning a Bachelor of Arts in Political Science. During those years he joined the ZBT fraternity, eventually serving as President in 1957. Harold completed the science prerequisites required for dentistry and was accepted into the University of Manitoba Dental School. While studying dentistry, he joined the Alpha Omega Dental Fraternity and became its President in 1959.

In the spring of 1960, Harold received a research grant from the Federal Research Council to work under Dr. John Spouge, head of Oral Medicine at the University of Manitoba Dental College. Their groundbreaking research examined patients with rheumatic fever and identified links between dental procedures and recurrence of the disease. The work ultimately contributed to recommendations in both Canada and the United States for preventative antibiotic treatment prior to dental procedures for at-risk patients - protocols that went on to influence many other areas of medicine.

Dr. Harold Diamond graduated in 1963 and opened a successful dental practice in Windsor Park. and became a respected leader in dentistry. He served on the Winnipeg Dental Society Board and was President in 1975-76. He also joined the Manitoba Dental Association Board and later served as President. . As President of the MDA in 1980, Harold prepared an important submission to the federal government regarding the lack of dental services in rural Manitoba. His work demonstrated the challenges rural dental practices faced and helped shape discussions around dental care accessibility in the Province.

During Harold’s time at the University of Manitoba, he met the love of his life, Paula Roseman. Harold and Paula were engaged in the spring of 1958 and married on August 4th, 1960. Their daughter Maureen was born in 1964, followed by their son John in 1967.

Together they built a beautiful life filled with love, partnership, family, and adventure. Harold was deeply devoted to his family, and nothing in his life mattered more to him than the people he loved, especially Paula. He placed everyone else’s needs before his own and loved his family with his whole heart.

Harold was an exceptional student with a brilliant mind, a champion chess player, and a thirst for knowledge. His passions were politics and history and later in life became an accomplished bridge player. He loved music and had a smile that would light up the room.

A devoted husband, a loving father and grandfather, a cherished uncle, colleague, mentor, and friend. Harold was deeply loved and will be profoundly missed.

Over the years, Harold faced many health challenges and remained deeply grateful for the loyalty and support of his associates, his office manager Joselyn Badiou, Dr. A. Miller, and the cardiac care team at the Cleveland Clinic.

Harold is survived by his wife (Paula Diamond), his daughter Maureen Diamond (Andrew Marquess), his son John Diamond (Heather Diamond) and his grandchildren, Samantha, Daniel, Benjamin, Matthew, Alex and Jake.

Donations can be made to the Harold and Paula Diamond fund at the Jewish Foundation of Manitoba.

As published in Winnipeg Free Press on May 30, 2026