Gertrude T. Lannigan of East Islip on May 20, 2020. Beloved wife of the late Gerard Lannigan. Devoted mother of Gerard W. Lannigan (Lois) and Stephen T. Lannigan (Michelle). Cherished grandmother of William, Matthew, Thomas and Nora. Private family wake will be held at the Albrecht, Bruno and O'Shea Funeral Homes Inc., East Islip. When permitted by the Diocese of Rockville Centre, Celebration of the Liturgy of Christian Burial will be private at St. Mary's R.C. Church, East Islip. Interment Calvary Cemetery, Queens, New York. In lieu of flowers, memorial donations in Gertrude's name may be made to: angelsoflongisland@outlook.com