Casey, Margaret M. (née O’Donnell) of Locust Valley, NY on March 23, 2021. Beloved wife of the late Daniel. Loving mother of Patricia Jagenburg (Gregory), Margaret Whitting (Codge), and the late Mary Jane. Cherished grandmother of Makayla, Katelyn, Sarah and Caitlin. Dear sister of James O’Donnell (Alice). Also survived by many nephews, nieces and relatives here and in Ireland. A Labor and Delivery Nurse at Glen Cove Hospital for over 30 years. Involved in many clubs and activities over the years including Irish step dancing. She was a kind and generous mother, grandmother and friend Visiting Mon 2-4, 7-9 Whitting Funeral Home 300 Glen Cove Ave., Glen Head, NY 11545 www.whitting.com. Funeral mass Tues 10am at St. Boniface Martyr Church, Sea Cliff, NY Interment Locust Valley Cemetery, Locust Valley, NY.