MARY MAYO BLACKWELL Peacefully on Friday, December 3, 2010 of Accokeek, MD. Beloved wife of the late Dr. Francis W. Blackwell, Sr.; loving mother of Vicki B. (Donald) Washington, Francis W. Blackwell, Jr. and Brenda M. Blackwell; dear sister of Rosa Jones, Katherine Beard, Carolyn Hutchins and John Mayo. She is also survived by seven grandchildren, Nichole, Kelley, Roxanne, Ryan, Adrienne, Ariana and Armand; seven great-grandchildren and a host of other relatives and friends. Visitation on Thursday, December 9 from 10 a.m. until time of service 11 a.m. at the BRISCOE-TONIC FUNERAL HOME, 2294 Old Washington Rd., Waldorf, MD. Interment Maryland National Cemetery.