After filtering for Oklahoma, 4 entries match your criteria. Historical Markers and War Memorials in Jefferson County, Oklahoma Clickable Map of Jefferson County, Oklahoma and Immediately Adjacent Jurisdictions image/svg+xml 2019-10-06 U.S. Census Bureau, Abe.suleiman; Lokal_Profil; HMdb.org; J.J.Prats/dc:title> https://commons.wikimedia.org/wiki/File:Usa_counties_large.svg Jefferson County, OK (4) Carter County, OK (11) Cotton County, OK (1) Love County, OK (3) Stephens County, OK (14) Clay County, TX (4) Montague County, TX (17) JeffersonCounty(4) Jefferson County (4) CarterCounty(11) Carter County (11) CottonCounty(1) Cotton County (1) LoveCounty(3) Love County (3) StephensCounty(14) Stephens County (14) ClayCountyTexas(4) Clay County (4) MontagueCounty(17) Montague County (17) Adjacent to Jefferson County, Oklahoma ▶ Carter County (11) ▶ Cotton County (1) ▶ Love County (3) ▶ Stephens County (14) ▶ Clay County, Texas (4) ▶ Montague County, Texas (17) Touch name on list to highlight map location.Touch blue arrow, or on map, to go there. GEOGRAPHIC SORT1► Oklahoma (Jefferson County), Addington — Addington Oil Fire Memorial — USAF Fire Protection — On County Road 1910 1 mile east of U.S. 81, on the left when traveling east. 2► Oklahoma (Jefferson County), Addington — Chisholm Trail Lookout Point — On County Road 1910 2.5 miles east of U.S. 81, on the right when traveling east. 3► Oklahoma (Jefferson County), Hastings — Southwest Baptist College — Hastings, Oklahoma — On Main Street (Oklahoma Route 5) east of Parrish Avenue, on the right when traveling east. 4► Oklahoma (Jefferson County), Ryan — Sunnyside High School — On County Road N2890 at County Road E2080, on the left when traveling south on County Road N2890.