Age 89, of Upper St. Clair, peacefully passed away at her home on Thursday, February 25, 2021. She was born on July 16, 1931 in Pittsburgh to the late Frank and Adeline (Arturo) Guerra. Loving mother of James Delli Gatti (Tabitha), David (Dorota) Delli Gatti, and Lisa Delligatti (James “Bo” Weintraub); Treasured Aunt of Jenny McGuire; Cherished grandmother of Emily Kaperst, Joseph Kaperst, Angelika Laskawska, and Frances Delli Gatti. Rose Mary is also survived by her faithful canine companion, Sophie. Preceded in death by her beloved husbands, Richard Murray and James Delli Gatti, cousin, Ralphina Scotti, and brother, James Guerra. Rose Mary was blessed to be married to Richard Murray and to be loved by his extended family. Rose Mary’s first marriage was to James Delli Gatti whom she shared 37 years of marriage and three children. Rose Mary was an avid golfer, reader, and fabulous cook. She also enjoyed to travel. Most of all, Rose Mary loved being a mom, grandmother and wife. She will be dearly missed by all who knew her. Funeral arrangements by BEINHAUERS. Friends and family are welcome at 2828 Washington Rd., McMurray, 724-941-3211 on Monday 10:30AM- 12:30AM. A Mass of Christian Burial will be celebrated on Monday 1PM in Resurrection Parish, St. Thomas More Church. Entombment to follow in Queen of Heaven Cemetery. Please add or view tributes at www.beinhauer.com