Forty-three-year-old Diana Lyn Meyer died Tuesday in Lehigh Hospital in Philadelphia, according to a news release from the sheriff's office.
Meyer was one of three people removed from the fire Monday morning. Authorities say 74-year-old Geraldine Rachelle Jones was pronounced dead at the scene. Sheriff's deputies say her husband, 69-year-old Donnie Jones, is in critical condition at Shock Trauma in Baltimore.
Authorities continue to investigate the cause and origin of the fire.