Tierney, Francis X., of Centereach, NY , on October 1, 2019. Ret. Police Officer NYPD. Beloved Husband of the late Josephine. Loving father of Thomas (Josephine) Tierney and Joseph (Meri) Tierney. Cherished grandpa of Kayla, Gianna,Olivia, & Evan. Dear brother of Sr. Frances Maura, & Cecelia Vaciels. Visiting sunday 2-4 & 7-9 pm at Hawkins & Davis Funeral Home, 17 Manor Rd., Smithtown. Funeral Mass Monday 9:45 am at St. Patrick's R.C. Church, Smithtown. Interment with military honors at L.I. National Cemetery, Farmingdale. I lieu of flowers memorial donations may be made to ST JUDE CHILDRENS RESEARCH HOSPITAL ,262 DANNY THOMAS PL MSC 512,MEMPHIS, TN 38105-3678