Dennis Jaconi Sr.
1943 - 2020
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January 23, 1943 - June 25, 2020 Dennis Paul Jaconi, husband, father and grandad, passed away peacefully on June 25, 2020. He was preceded in death by his parents, his sister Susie and brother Marty Jr. Dennis was born in San Pedro, the second of five children of Sally and Marty Jaconi. He attended Mary Star of the Sea and graduated from San Pedro High School in 1961. Dennis was a real-life MacGyver. He could take apart and rebuild just about anything. He loved skiing, camping, fishing, and anything outdoors really. Above all, he was a storyteller, able to captivate an audience for hours. Dennis lived a life on the water. From diving for coins off the Avalon pier as a kid to a career in marine environmental services up and down the California coast. Later in his career, he founded Sundance Services, a marine clean-up and construction company in San Pedro. Dennis struggled with Parkinson's disease over the past 10 years, but that didn't keep him from enjoying his life in the community of Portuguese Bend Beach Club, a place dear to his heart for over 70 years. Dennis is survived by his wife, Kelly; sister, Tina; brother, Brian; son, Denny; daughter, Trina; son-in-law, Paul and their mother, Karen, along with two grandchildren, Desmond and Felix, and nieces and nephew. His ashes will be spread at sea in a small private ceremony. If you would like to share memories you may email his son Denny Jaconi Jr. at

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Published in Palos Verdes Peninsula News on Jul. 1, 2020.
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4 entries
July 15, 2020
My Deepest Sympathy Dennis Family
I am so sorry for your loss as Dennis was a wonderful Man
We went all the way through school together at Mary Star & Pedro High.
He was one of the smartest guy in our class and was like by everyone who knew him.
We reconnected on the Parkinson web site and was so sad he had this as it is hard to fight it everyday but he did it and he keep my spirits up
Rest in Peace my Dear old friend.
Sharon Moran
Sharon Morgan
July 11, 2020
I am so sorry to hear about Dennis' passing. I worked for Dennis years ago. He was a smart, witty, kind and generous man. He will be sorely missed. My condolences to his wife, Kelly, and his children. God Bless.
Todd J Beach
July 2, 2020
I pray that he is in a better place. He loved to host parties. I am a better person for knowing him. My prayers go out to his wife,& entire family. Grateful John Portsmouth, R I
July 1, 2020
Tina and Brian, so sorry to read of your brother's passing. Every summer I think about your mom & dad; Denny Sr, Marty Jr, and Susie...and July 4th BBQs at Portuguese Bend Club. The whole beach stopping by for Italian sausage sandwiches with the roasted peppers & onion on Joseph Bakery rolls. Your mom wave surfing with a surf mat; your dad with his pipe. Simpler times.

May your brother's memory be a blessing.
Trina Borelli
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