Pedzisa mutsara unotevera: Shaw akanyoresa muUnion Army nokuda kweHondo yeVanhu veAmerica, achibatanidza Kambani A, 35th New York Volunteer Infantry Regiment somunhu oga muna June 1861. Akazokwidziridzwa kuva mukuru mukuru, uye akashanda kusvikira abviswa pamwe chete nerimwe boka rake muna June 1863. Shaw akatora chikamu mumabasa echikwata ichi muVirginia neMaryland, kusanganisira; kuvakwa kweFort Tillinghast neFort Craig (matsutso a1861); kuchengetedza uye kutenderera basa muFalls Church, Virginia (chando cha1861-1862); kuchengetedza uye kutenderera basa muFalmouth, Virginia (chirimo cha1862); hondo paRappahannock Station, White Sulphur Springs, uye Gainesville (zhizha ra1862); Hondo yechipiri yeBull Run (Nyamavhuvhu 1862);
Chantilly (September 1862); South Mountain (September 1862); Antietam (September 1862); uye Fredericksburg (December 1862). MunaJanuary, 1863, regiment yakapiwa kuProvost Guard Brigade muFalmouth, uye yakaitawo varindi uye patrol basa pamwe neAquia Creek njanji. Muna May, hurumende yakabva kuMaryland ichienda kuNew York kuitira kuti ishandiswe.