I've talked to some more guys, since getting interested in this route, and it looks like basically all the couloirs, all 3-4 of them, from just right of the Hogsback to the one you indicate above, are all variations of DKH, and even numbered from 1-X, depending on who you talk to.
I just got my copy of Oregon High, and it lists this route as "East Crater Wall" route, the next left being "Flying Buttress," and with the two couloirs between it and Pearly Gates being two variations of DKH.
"After the first glass, you see things as you wish they were. After the second, you see things as they are not. Finally, you see things as they really are, which is the most horrible thing in the world."
--Oscar Wilde on Absinthe