A Funeral Mass for Thomas J. McDermott, 87, will be held on Saturday, March 2, in the Church of Saint Patrick, 212 Main St., Watertown. Mr. McDermott, a son of the late Patrick J. and Mary (McGuire) McDermott, was born in Watertown. He was a lifelong resident of the town, attended Saint Patrick Grammar School and graduated from Boston College High School. He furthered his education receiving a bachelor’s degree from Boston College and a master’s degree from Suffolk University. After Boston College, Mr. McDermott served in the United States Army Honor Guard during the Korean Conflict era.