The capacity of the George B. McClellans pumps was 7000gal per minute.
The George B. McClellan was wrecked by an explosion, in 1954. Another fireboat, the John D. McKean, was named after an engineer who died when he stayed at his post on the George B. McClellan when she exploded.
The George B. McClellan was named after the then-incumbent Mayor of New York City, the son of the Civil War General.