Mary Kilpatrik

 or Subject B440 was one of the original residents of Vault 87, who died during the FEV experiments conducted in the Vault.

Background
According to Doctor Wayne Merrick's autopsy, she died of a massive loss of brain function and was unable to sustain her basic bodily needs.

Appearances
is only mentioned in Fallout 3 in one of the Vault 87 terminal entries.