Rosemarie Shook, 65, of West Deer Township, passed away, February 18, 2023, at Allegheny General Hospital. Rosemarie was born on July 25, 1957 in Pittsburgh, daughter of Anna Trenga, of Oakmont and the late Louis Trenga. Rosemarie worked for GMAC and Allied Financial in the title department. She also worked at Goodwill, Gibsonia. She enjoyed traveling and road trips with her late husband William, collecting jewelry and trinkets, and cleaning. Rosemarie is survived by her mother and daughter, Jennifer Ann Shook (Brad Haizlett), of Clearwater, FL; grandson, Joshua Shook of, Pittsburgh; sisters, Nancy (Bob) Bacon of, Plum Boro, Louann (Mark) Molnar of, Columbus, OH, Melissa Trenga of, Penn Hills  and four nephews. Rosemarie is preceded in death by her father and husband, William T. Shook, in 2018. Friends and relatives are invited to attend visitation from 10 to 1 pm, Wednesday, February 22, 2023, at Adam Siemianowski Funeral Home, 179 Starr Road, Russellton, 15076. A blessing service will be held 1 pm, Wednesday, in the funeral home with Rev. James P. Holland officiating. Rosemarie will be laid to rest next to her husband, William, at Lakewood Memorial Gardens, Indiana Township.