M. Burrow was a member of the secret scientific team of Vault 81.
Burrow was initially not a researcher for the Vault 81 science team, but rather an assistant. He was the youngest member of the team, having outlived both Collins and Flint. After both of their deaths, he continued their work on making antidotes with the assistance of Curie. Before his death, he ordered Curie to continue working alone so that their deaths would not be in vain.
M. Burrow is mentioned only in Fallout 4.