[Real Badman]

Double Wing: People call different things double wing. The true double wing is what Estill Co runs. It's foot to foot splits, block everything down and kick out with a lead almost like counter tre. The fullback is very tight to the QB and it hits quick. If run right it's a bear to stop. Tough to pass out of other than play action because everything is so compact. I guess you could have a bunch series out of it.
Lawrence Co runs 2 wings a good bit but it's much more of a WingT scheme (double wing has some WingT principles).
Georgetown College won a lot of their early championships mixing the 2 with an unbalanced set around the goalline. They ran WingT principles along with some option. They also incorperated some run and shoot stuff.
Veer: Triple Option which has been mentioned. There are several different options. Midline is mostly a double option where the FB aims at the crack of the center. Inside Veer he's over the guard. Outside veer he's over the Tackle. Speed option option out between QB+TB a lot of times out of gun. Load option and lead option are speed options with fullback lead blocking. GT also runs a counter option to keep teams from rolling the secondary to their motion. Cowboy option is basically speed option but the slot back is now the pitch man. Some high school teams in Texas started pairing the zone read (which is a double option with QB reading end man on the line of scrimmage out of gun) with the bubble a lot of spread teams throw. It's another way to run triple option. You can add a pitch to zone read too.
Delta State was the first team I ever saw run the toughest offense I think I've seen. They ran the 2 wing set GT runs and ran the option like them. Unlike GT they ran the run and shoot to perfeection so you COULD NOT load up vs the run. They won it all. I used to have the playbook somewhere. It was called the Triple Shoot.
Nebraska ran the veer from the I and Power I back in the day. To a lot of peoples suprise they also ran a good bit of zone and zone option. The split back veer in it's day was a bear. ST X in KY runs it as well as any high school team I've seen.
You can run option from about any formation. WingT, I, Maryland I, Split BAck, Gun etc. It's all about the blocking schemes and knowing what people to block and what people to read.

You make a good point and all, but the double wing Estill ran is not the true double wing. It was made up by some coach in California. Im not sure of his name. The original DBW is a predominant running formation derived from the wishbone formation. Im not too familiar with the distinct history of it but I do know the double wing Estill runs is not the true DBW.

And some side notes:

Often times in Estill's offense, they wont completely down block. There is a line audible for that called 'domino'. Your BSG and BGT will pull into the hole kickout and seal respectfully.

Other then that I commend you on your intelligence of this topic. Congrats.