As she scrolls through her Facebook page on some days, Terri Talley is taken back to the most terrifying time of her life: a period flooded with memories, mostly bad, but also the last time she saw friends whose memory she still holds close all these years later.

Talley was inside when Timothy McVeigh blew up the Alfred P. Murrah Federal Building on April 19, 1995, killing 168 people. Twenty-one of them were Talley's friends and co-workers at the Federal Employees Credit Union.

All of the victims will be honored today as survivors and members of the public gather at 8:45 a.m. at the Oklahoma City National Memorial Museum for the 23rd Anniversary Remembrance Ceremony.

The occasional Facebook reminders are part of the Oklahoma City National Memorial and Museum's effort to keep the victims' memories alive. On each victim's birthday, the memorial posts a short bio and, sometimes, a video of a loved one talking about the person. Often a photo of a personal belonging is included.