What was the army rank of Mildred Gale's grandson?
Mildred Gale: Mildred Gale (1671–1701), born Mildred Warner in the Colony of Virginia, was the paternal grandmother of George Washington, the first president of the United States. George Washington:  He served as Commander-in-Chief of the Continental Army during the American Revolutionary War, and later presided over the 1787 convention that drafted the United States Constitution.
Commander-in-Chief