John Rodgers Meigs was the son of Union Quartermaster General Montgomery C. Meigs, and his official correspondence reveals much about his duties as a military engineer and aide-de-camp to Union generals. The private correspondence between him and his father and mother is especially compelling. Approximately forty of the letters were written in an early version of Pitman shorthand and are here transcribed for the first time. Collectively, they provide an intimate picture of the young Meigs, uncover the concerns of a family with high expectations, and offer a unique look at a devastating war.