PARADISE, Calif. — Nearly a week after a historic fire ripped through this small town and killed at least 48 residents, hundreds of others are still missing, and the Butte County Sheriff’s Department has begun releasing the names of those they have yet to find.

Most on the list are older than 70; many are in their 90s. Some appear to be married; others appear to be father and son. Among them: Dorothy Larsen, 88, Chuck Piazza, 90, Josephine Hartje, 94, and Calvin Cunningham, 95.

When the fire broke out on Thursday, the people of Paradise dashed from their homes, many leaving without the devices that would allow them to alert the world that they had survived. Others simply never had cellphones, computers or Facebook accounts that would help them check in.