The women were identified by the medical examiner's office today as Marilynn Postley, 84, and Connie Yim, 67, who also went by the name Connie Chung.
The blaze was reported around 11:30 p.m. Sunday at a home in the 1900 block of Jackson Street.
Postley and Yim suffered burns and smoke inhalation and were taken to St. Francis Memorial Hospital, fire department spokesman Mindy Talmadge said.
Yim was Postley's caregiver and lived in the house with her, Talmadge said.
Firefighters were able to put the one-alarm blaze out just before midnight. It caused about $25,000 in damage to the home's roof and a bedroom, fire officials said.
An assistant fire chief initially said the fire may have been caused by cigarettes, but Talmadge said the cause remains under investigation.