|Book(s)|| A Game of Thrones (appears)|
A Clash of Kings (mentioned)
A Storm of Swords (mentioned)
A Feast for Crows (mentioned)
A Dance with Dragons (mentioned)
A Game of Thrones
Jeren is in the same recruit class as Jon Snow, who believes Jeren is as weak as a girl. He is among those that Ser Alliser Thorne names as ready to become men of the Night's Watch when word is received that new recruits are on the way.
A Storm of Swords
Jeren has been named to the stewards.