John Thomas O’Neill, born July 22, 1947, Rochester, PA, passed away at Gulf Coast Hospital in the presence of his loving wife, MaryAnn (Dudash) O’Neill, on September 6, 2025, at the age of 78. Resident of Naples, Florida, formerly Wyomissing, PA, Beaver, PA. and Monaca, PA.
Son of Thomas Louis O’Neill and Eleanor Zachodni O’Neill of Monaca, PA., both deceased. In addition to his parents, he was preceded in death by his brother David.
He is survived by his wife MaryAnn, daughters Amy Paulette O’Neill (Christophe), Mary Margaret Emmi (Peter), Julie Ann Strain (Jack) and Son John Thomas (JT) O’Neill (Madur). Grandchildren Jaclyn (Jackie) and Michael (Mickey) Cordaro, Sophia and Peter Emmi, and Paul O’Neill Cherix and 5 step-grandchildren.
Also survived by brothers Martin M. O’Neill (Donnette-deceased) and Thomas E. O’Neill (Cheryl), and sister Teresa Boord (Raymond–deceased). He is also survived by many nieces, nephews and their family and longtime friends who were very dear to him.
Honorable discharge from Navy Seabees, veteran of Vietnam. Graduated from Monaca High School,.
Beaver Campus of Penn State University, Slippery Rock State College and Geneva College.
Upon retirement as owner of Landmark Surveying of 28 years John enjoyed playing Texas Hold-em and visiting State and National Parks with his lovely wife of 54 years.
In his words, “What a FANTASTIC way to end the journey!”
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