Joe Becker became the General of the Minutemen at some point, and served in the position until 2282 before or in May when he was killed in combat under unknown pretenses. He was also stated to be disgusted with criminals and raiders by James Wire in his terminal like he would be with him as he did. During his time as general, he was remembered by Preston Garvey as a good, strong leader and how he was able to keep a lid on the Minutemen and keep them all on the same team. Following his death, the Minutemen began infighting and could not decide on a new general to replace him, eventually leading to the Minutemen's collapse five years later.
Joe Becker is mentioned only in Fallout 4.