Who is General Meade from Personal Memoirs of U.S. Grant and what is their importance?

A commander who was ordered by Grant to move against Nashville. Meade failed to move as ordered, prompting Grant to issue another order, this time telling Meade that he would be "mortified" if he were forced to follow the Confederates in bad weather. Meade is with Grant when he cuts off Lee's troops from their supply trains.