While working at the Museum of Technology, Bell made a few log entries that criticized the gun exhibit, alerted employees of something new arriving or being fixed, and asked for maintenance of another exhibit.
B. Bell is mentioned only in Fallout 3.
Behind the scenes
Burton Bell is the lead vocalist of the band Fear Factory, whose lyrics include the phrases "the infection has been removed / the soul of this machine has improved" - phrases which appear in the Museum of Technology terminal entries under the name B. Bell.