Likely Richard Wood Baldwin (American, 1921-2012). Four graphite and crayon sketches, three framed, one unframed, depicting allegories of Victory, unsigned; 23.25 x 16 in. (largest sight), 31.5 x 25.5 in. (largest frame).
Baldwin completed a total of eight murals at Pendleton Field in 1943 and 1944. All the murals were oil on canvas or oil on masonite, and located in various rooms of the facility, including theaters and a Service Club. It is unclear whether these sketches were used as preparatory works for a mural at Pendleton Field.
Pendleton Field opened in early 1941 as a site for an Army Corps station in the Northwest Air District and was named after Senator George Pendleton of Ohio. The overall mission of the new airbase was to train combat crews, specifically bombardment unit training. Later during the war, in 1944, its mission aligned with that of many other military airbases, focusing more heavily on supply and maintenance operations, which caused important cutbacks. By the end of the year, the airbase was in fact declared inactive, and though reactivated for a few months, it was declared "surplus property"at the end of 1945. No longer managed by the War Department, it fell under municipal supervision. The murals were removed after the war, and are believed to have been destroyed.
Richard Baldwin, originally from Pennsylvania, served in the Air Force during WW2, mostly in the Western Pacific, and doubled as a combat artist during that time.
The Oregon Encyclopedia https://oregonencyclopedia.org/articles/pendleton_field/
Brown University Library, Prints, Drawings and Watercolors from the Anne S. K. Brown Military Collection https://repository.library.brown.edu/studio/collections/id_619/search_field=&q=Baldwin%2C+Richard+Wood+%28artist%29
Daily Local News, Richard W. Baldwin Obituary http://www.legacy.com/obituaries/dailylocal/obituary.aspx?page=lifestory&pid=157068658