Oklahoma's flag features crosses, which are Native American signs for these objects seen on many other flags
Even beyond that, though, the flag has taken on yet another ... that flag says to 
our African-American brothers and sisters in Christ, ..... Oklahoma... [DOC] [TLE] AMERICAN CITY FLAGS - Dave Martucci's Flag Pages [PAR] Raven: A Journal of Vexillology is published by the North American Vexillological
.