John Harriman

John Harriman was a Starfleet officer and captain of the USS Enterprise (NCC-1701-B) in the late 23rd century. The shakedown cruise was notable for losing retired captain James T. Kirk.

Myriad Universes
In one alternate timeline, Harriman, along with Kirk and the Enterprise-B, were lost after being ordered to destroy an energy ribbon that threatened the solar system. The USS Excelsior and USS Gunterman arrived after both the Enterprise and ribbon disappeared. It turned out that the Enterprise was not destroyed, but actually sent close to 78 years into the future.