I have removed Private 1st Class William A. Boatman from Coleman County simply because we have not found any evidence that he had connection to Coleman County. His birthplace is Cherokee County, Texas, and he was living in Cherokee County, Texas in both 1920 and 1930 censuses. No Coleman County connection found.
William Ancil Boatman born on 4 August 1912 at Ponta, Cherokee County, Texas to Mary Ida Victoria Matteson(b.1884 Nacogdoches County, Texas-d.1938 ) Age 28 and John William Boatman(b.1884 Cherokee County, Texas-d.1971 ) Age 28.

1920 census Age 7 living with his parents, three sisters and two brothers in JP6 Cherokee County, Texas. 1930 census Age 17 living with his parents, two sisters, grandmother Boatman and three brothers in JP3 Cherokee County, Texas. 1935 living in rural Cherokee County, Texas. 1940 census Age 27 living on Fort Mc Dowell Military Reservation as a Private US Army soldier at Sausalito, Marin County, California. William A. Boatman asn-06262394 a single white male born Texas in 1912 residing in Cherokee County, Texas working in a factory with two years of college education enlisted from the reserves in civilian life into the US Army as a private at Texas on 2 February 1940.

Private 1st Class William A. Boatman 06262394 US Army Battery E 59th Coast Artillery Regiment Coast Artillery Corps aka Fort Drum (originally known as El Fraile Island), also known as "the concrete battleship", is a heavily fortified island situated at the mouth of Manila Bay in the Philippines, due south of Corregidor Island. The reinforced concrete sea fort shaped like a battleship was built by the United States in 1909 as one of the harbor defenses at the wider South Channel entrance to the bay during the American colonial period. Pfc Boatman was killed in action on 31 May 1942 on or near Corregidor Island, Philippines by the invading Japanese forces, twenty five days after the end of the Battle of Corregidor. He was buried in a temporary grave until after the war when his remains were repatriated to America and reinterred in the Walkers Chapel Cemetery at Cherokee County, Texas.

Walkers Chapel Cemetery↗

I do not know who is responsible, the military probably since casualty identities was their responsibility especially to the next of kin.