Sam Dealey was born on September 13, 1906 in Dallas, Texas. He was appointed to the U.S. Naval Academy at Annapolis, Maryland, from Texas and graduated in June 1930. Dealey was commissioned an Ensign and reported for sea duty aboard USS Nevada BB-36, where he was promoted in June 1933 to Lieutenant junior grade. In March 1934, he briefly transferred. Samuel had the MOH and was a commanding officer.