User blog comment:ACWeapons/RWBY Genderbend Conversion Chart/@comment-25110963-20151224075028/@comment-26397825-20151224111035

Not if they're twins, I think, since they  biologically   are sort of gender swaps of their twin.

However, I do know that Qara is Azerbaijani for Black, which would fit for Qrow. I don't know any R words or names for black though, but Raven could technically be a unisex name.