 Nyorai kupfuurira kweiyi ndima - Akapinda muuto reConfederate sacolonel we3rd Virginia Infantry Regiment. Akakwidziridzwa kuva brigadier general musi waApril 16, 1862. Boka rake rakarwa muPeninsula Campaign uye paSecond Manassas, apo yakava yakaparadzaniswa mukurwisana kunotenderera uye yakashanda kwenguva pfupi pasi paStonewall Jackson. Mutungamiri waPryor pakutanga waiva wechipiri Florida, wechi14 Alabama, wechitatu Virginia, uye wechi14 Louisiana. Munguva yeHondo yeMazuva Manomwe, 1st Coppens Louisiana Zouave Battalion yakasungirirwa kwenguva pfupi. Pashure pacho, vanhu vokuLouisiana vakabva uye Pryor akagamuchira mapoka maviri matsva; 5th uye 8th Florida Infantry. Somugumisiro, rakatanga kuzivikanwa seThe Florida Brigade. PaAntietam musi waGunyana 17, 1862, akatora kutungamira kweAndersons Division muLongstreets Corps apo Maj. Gen. Richard H. Anderson akakuvara. Pryor akaratidzika kuva asina kukodzera somutungamiriri weboka, uye mauto eUnion akapoteredza nzvimbo yake, achivaita kuti vadzoke mukusagadzikana. 