Thomas Eugene Brosnan passed away peacefully on April 26, 2026, at his home in Palo Alto, surrounded by his family.
Born in Chicago, Illinois, Tom—affectionately known as “GPA”—lived as a faithful Catholic, reflecting Christ’s love through his generosity and service. A quiet hero, he was devoted to God, his family, and his country.
Tom proudly served in the United States Navy from 1958 to 1962 aboard the USS General W. A. Mann. He married his beloved wife, Pauline Pearl, in 1962, and together they built a life in Palo Alto, raising four children and creating a legacy of love.
He founded Brosnan Test Labs in 1980 and led it until his retirement in 2000. He later served as a chaplain at Stanford Hospital.
Tom is survived by his loving wife of 63 years, Pauline Brosnan; his children, Linda Fisher, Donna Sanchez, Sheila Santana, and Tommy (Jeanette) Brosnan; 10 grandchildren, 12 great-grandchildren; and his sisters, Carol Mackay, Betty O’Brien, Mary Alice Heim, and Patsy Christensen.
He was preceded in death by his parents, Jerome and Marion Brosnan; his brothers, Jerry and James Brosnan; and his sisters, Marion George and Bonnie Brosnan.
A faithful servant, he now rests in the eternal peace of the Lord.
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