Walter Crockett began his military career as a member of the militia for Augusta County, Virginia. After attaining the rank of Lieutenant Colonel, Walker Crockett served in the militias within Botetourt and Fincastle county. Later, after Fincastle county was dissolved, he served in Montgomery county. Walter Crockett served in the Point Pleasant expedition of 1774, during Lord Dunmore’s War and during the Revolutionary War he served in the military in Southwest Virginia. During the American Revolution, he also served in the Virginia House of Delegates, representing Montgomery County, and he was at Virginia’s convention to ratify the United States Consitution. In 2001, a historical marker was dedicated to former Virginia House of Delegates member Walter Crockett.