George David Shea was born in
Augusta, Georgia on January 11, 1894, the son of William Thomas Shea and Joanna (Bodeker) Shea. He was educated in the schools of Augusta, and was a 1914 graduate of the
Academy of Richmond County. While at the academy, Shea participated in its corps of cadets, in which he attained the rank of captain. In May 1912, Shea won the Augusta
YMCA's annual drill and ceremony contest, and later that month he received the Levy medal for winning the academy's annual competition. He also competed for an appointment to the
United States Naval Academy offered by Congressman
Thomas W. Hardwick. He was selected for both, but chose not to accept either. Determined to begin his military career immediately, in 1915 he enlisted as a
private in the
United States Army's
1st Engineer Battalion. Shea served in the enlisted ranks until successfully applying for a commission, and he attained the rank of
corporal. In addition to serving on the
Mexico–United States border during the
Pancho Villa Expedition, Shea was part of a team that carried out surveys of the
Atlantic coast from
Brunswick, Georgia to
Charleston, South Carolina. ==World War I==