Mary Donna Lewandowski (O'Brien), 66, of Hamilton, NJ, passed away on Saturday, December 16, 2023 at home.

A lifelong resident of Hamilton, Mary was born to the late Thomas and Donna O'Brien, the eldest daughter of eight siblings in an Irish Catholic family. Mary was a graduate of Steinert High School (class of '75) and later received her associate degree in Opthalmic Science at Camden County College. She went on to be a Licensed Optician for 25 years where she formed many close relationships and was a well-respected and accomplished professional in her field.

Mary was a devoted wife and friend to all. She loved her cats, taking trips to Wildwood each summer and watching Nascar races. Her favorite place to be was in her backyard, her "happy place", listening to music, tending to her landscape and lounging by the pool with her loved ones. Above all else, Mary loved spending time with her family, especially its littlest members; They were the center of her world.

Predeceased by her sister Kathleen Reed, brother Thomas O'Brien, mother and father-in-law, Edwin and Audrey Lewandowski, her brothers-in-law Jay Lewandowski, Ed Lewandowski, and Gary Reed, and her sister-in-law Joan Lewandowski. Mary is survived by her loving husband of 31 years Brian (Jake) Lewandowski; her step-sons Joshua (Christine) Lewandowski and Justin (Brie) Lewandowski; her siblings, James (Virginia) O'Brien, William (Joan) O'Brien, Michael O'Brien, Alice (Joseph) Leone, Sharon (Thomas) Rockhill; her sisters-in-law, Maureen (Richard) Gulden, Loretta Lewandowski and Dolores O'Brien; her nieces and nephews, Mark, Thomas, Blayze, Robert, Jaclyn, Kailin, Joseph, Natalie, Michalyn, Allie, Brittany, Ed, John, Michael, Lori, and their partners; her great nieces and nephews, Thomas, Carter, Harper, Callan, Mia, James, and Casey; many cousins, and dear friends, including: Faye, James, Tom, Kim, Larry and Jody.

Memorial service, including visitation, will be held on Tuesday, January 9 at St. Raphael-Holy Angels Parish, 3500 S Broad St. Hamilton, NJ. Visitation 9:30 - 10:30 a.m. Service immediately following.

In lieu of flowers, donations may be made in Mary's name to The American Cancer Society at raiseyourway.donordrive.com/c…

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