Billy Moore Gresham was born in El Dorado, Arkansas. He
entered the Army Air Forces for flight training in 1942 and was commissioned and
rated a pilot on 25 March 1943 at Mariana, Florida. Initially assigned to the 15th
Fighter Group at Bellows Field, Hawaii on 12 May 1943, two months later he
transferred to the newly organized 432nd Fighter Squadron, 475th Fighter Group.
Organized in Australia and equipped with the P-38 Lightning, the Group moved to
Dobodura, New Guinea on 14 August. A week later, Gresham scored his first aerial
victory by downing a Japanese twin engine fighter near Dagua, New Guinea during a
series of raids against Japanese held Wewak.
By the end of August, Wewak had been neutralized and the 475th operations shifted
to the support of the invasion of Lae, on the southeast coast of New Guinea. On 20
September, Lieutenant Gresham shot down two Tonys over Marilinan.
On 15 October, the Japanese launched a major aerial assault on Oro Bay. In the
ensuing wide-ranging battle, the 475th was credited with destroying 21 bombers and
15 fighters of which Gresham accounted for a Kate. Nine days later, the 80th Fighter
Squadron joined the 475th on a B-25 escort mission to Rabaul. As they approached
their target, 50 Japanese fighters attacked the American formation. Lieutenant
Gresham shot down one of the Zekes to become an ace.
As the Allies gained control of New Britain, Gresham, newly promoted to first
lieutenant, scored his last confirmed victory on 18 January, shooting down a Zeke
over Wewak. He claimed one additional Oscar on 31 March as a probable.
On 2 October 1944, in an aerial battle over Biale Island, Gresham's P-38 was hit
and he was forced to bail out. His parachute failed, however, and he fell to the
ground.