Francisco E. Mercado Sr of Cambridge and Somerville, age 79. Beloved husband of the late Barbara Ann (Carbone) Mercado. Devoted father of Geno Mercado, Anna Mercado, Francisco Mercado Jr, and the late Beatrice Mercado. Also survived by eight loving grandchildren, one great-grandchild. He is also survived by his sisters and brothers. Funeral Mass will be held in St. Mary’s Church, 134 Norfolk St, Cambridge, on Friday, March 8, at 10:00am. Relatives and friends invited. Visiting hours from 4:00-7:00pm at John C. Burns and Sons Funeral Home, 305 Broadway, Cambridge, on Thursday, March 7. In lieu of flowers, memorials in Francisco’s name may be made out to The Arthritis Foundation, 1355 Peachtree St. NE, Suite 600, Atlanta, GA 30309, or to Lupus Foundation New England, 40 Speen St, Suite 101, Framingham, MA 01701. Interment at Cambridge Cemetery. Guestbook at www.burnsfuneralhomes.com.