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Dennis O'Brien

October 24, 1935 - October 05, 2021
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Posted by:

Erin Mulhern

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Posted by:

Erin Mulhern

Report Obit

Dennis O'Brien

October 24, 1935 - October 05, 2021


Dennis O’Brien, born October 24, 1935, in Stockton, California, died peacefully in his Walnut Creek Home on October 5, 2021. With him when he passed were his beloved wife, Rose Mary, and three daughters, Kelly, Erin, and Jeri. He was 85 years old.

Dennis went to several different grammar schools and graduated from Oakland High School. He attended college at University of the Pacific and graduated with his BA in 1957. He was a member of the Omega Phi Alpha fraternity where he met many of his lifelong friends.

His parents, Francis Joseph O’Brien and Elsa Catherine O’Brien, owned a trucking company, Atlas Freight Lines, in Oakland, California, which Dennis ran while attending Golden Gate University School of Law. He was admitted to the State Bar of California in January of 1966 and began practicing law in San Francisco. He moved his practice, Law Offices of Dennis O’Brien, to Walnut Creek, California in 1970. In 1983, the firm O’Brien & Sullivan was formed, which subsequently became O’Brien, Sullivan & Van Ness. Dennis retired in 2007.

Dennis’ personal life revolved around family and friends. He met the love of his life, Rose Mary Butler, in June 1974. They both shared a love of Carmel, California where they are part-time residents. They married in 1999 at one of their favorite Carmel spots, Mission Ranch, after a long and loving courtship. There has rarely been a couple so meant for each other.

Dennis (Daddy) was very proud of his daughters, Kelly MacKay, Erin Kowalik, and Jeri Denise Brown. He was a generous, devoted father, who filled their hearts and lives with enough love to last a lifetime and more. He will be greatly missed by his family.

In addition to his wife and daughters, Dennis is survived by his sister, Cathy O’Brien, eight grandchildren, six great grandchildren and one niece, who all loved him deeply.

Dennis enjoyed music, reading, sports, dogs, and watching his beautiful wife dance. He will be remembered most for his great sense of humor and his love of people. He was a master joke teller and always the life of the party. He could strike up a conversation with anyone anywhere and always made you feel special. When you became a friend of Dennis, you became a friend for life.

Services to be planned at a later date.

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Condolences 1

Christina Van Ness Beautiful tribute to a great man! Dennis O’Brien was a force of nature. Life without him will be a lot less colorful. But despite the loss, how fortunate am I to be amongst the ones he called “a friend”?! 💔
16 days ago

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