On Thursday, April 30, 2015, of Bowie, MD. Beloved wife of the late John Henry Costello; loving mother of Bonnie Costello Thrift (Donald), John J. Costello (Kate), and Sean P. Costello (Tiffany); sister of William Szmyd; grandmother of Diana, Abigail, and Olivia Costello. Family will receive friends at the family-owned BEALL FUNERAL HOME, 6512 NW Crain Hwy. (Rte. 3 South), Bowie, MD on Sunday, May 3, 2015 from 3 to 5 p.m. A Mass of Christian Burial will be celebrated at St. Edward the Confessor, 1940 Mitchellville Rd., Bowie, MD on Monday, May 4, 2015 at 10 a.m. Interment, Lakemont Memorial Gardens. If desired, contributions may be made to the American Heart Association , 4217 Park Place Ct., Glen Allen, VA 23060.