Cavanaugh, Joan Thérèse, of Islip, LI, on November 18, 2021. Beloved wife of the late Peter Lloyd Cavanaugh. Devoted mother of Denise McCraney, Peter L. Cavanaugh, Jr., Regina Pope, Maureen Huggins, Mary Beth Siemion, Ellen Altieri, Jennifer Lindstrom and the late Thomas G. Cavanaugh. Loving mother-in-law of Mac McCraney, Audrey Cavanaugh, Peter Huggins, Dave Siemion, Michael Altieri, George Lindstrom, Mary Cavanaugh and the late Robert Pope. Cherished grandma of 15. Adored great grandma of 7. Reposing at The Fredrick J. Chapey & Sons East Islip Funeral Home, 200 East Main Street (1/2 Mile West of the S.S. Parkway, Exit 45). Celebration of the Liturgy of Christian Burial will be held at St. Mary’s R.C. Church, East Islip, LI, on Monday at 9:45 AM. Interment to follow at Calverton National Cemetery, Calverton, LI. Visitation Saturday 7:00 PM until 9:30 PM and Sunday 3:00 PM until 5:00 PM and 7:00 PM until 9:30 PM. www.chapeyfamily.com