The creek was named after the Byman family of Perow and Houston, that moved to the area in 1919. One descendant, Tim Byman tells us, "I'm not sure if the Falls have another 'official' name, but folks around here call them Byman Falls because of the creek."
Then again, "nameless" Falls will never make it onto a Forestry Map, so maybe it's best if we keep this bit of information under our hats, OK?