In the late 2260s, Jonas was appointed to be James' assistant by the Overseer, who hoped he would be a voice of reason. Jonas and James forged a friendship very quickly and together they worked at examining and treating patients, as well as conducting routine experiments testing the health of the Vault. After James left the vault, he was killed by Officer Mack.
Lucy was his Grandmother and only known surviving family before he died. Lucy raised him after his mother died.
Anne was his mother who died when he was young.
James was his co-worker and bestfriend. They worked in the Labs of Vault 101. They were very close. He trusted him with his life and gave him a letter to give to Cywren when he left the Vault.
Jonas is presumed to have not liked the Overseer.
Jonas knew Cywren very well and was like an adopted father to her. He wished he luck with her G.O.A.T exam and also along with her father gifted her woth a BB gun on her tenth birthday. Hew also took James and Cywren's photo. He was to give Cywren a letter from her dad before she was killed.
- Cywren normally wears Jonas' scientist robes and glasses.