Barbara (Wagner) Callahan of Bedford, New Hampshire, formerly of Centreville, Virginia, passed away May 22, 2015. She was the beloved wife of the late John P. Callahan; Beloved sister of Ruth Frasso and the late Louise Dunlap; Loving daughter of the late Anna and Charles Wagner. Barbara is survived by many nieces and nephews. She proudly served her country as Major in the Marines, and a veteran of the Korean War. She worked as an Assistant Editor for the Kiplinger Personal Finance Newsletter. A funeral mass will be held at 10 AM on Wednesday, June 3, 2015 at St. Timothy Catholic Church, 13807 Poplar Tree Road, Chantilly. An interment service will follow at Fairfax Memorial Park. Arrangements by Demaine Funeral Home – Fairfax.