The Hudsonville outbreak sequence was actually pretty significant. I've got a pretty good start on the 4/3 Michigan tornadoes so that isn't a problem. I've got some stuff on Davenport-Drumright, OK and a little bit on the huge Newkirk-Grenola-Toronto family, but not nearly enough to cover it the way I want. That family alone featured multiple large, violent tornadoes (including a possible F5), and that's not even mentioning the F4 that struck parts of OK-KS-MO, the Berlin, WI F4, the Lexington, TN F4 and a handful of other F3s. It'd be manageable if I knew I could find enough photos and whatnot but I suspect some of those are gonna be really tough.
The only break w/Hudsonville is with the Holland F4, which is officially counted as the same tornado. The Grand Traverse Bay F4 may've had a break southwest of Lake Ann and possibly another up around Lake Leelanau but I'm not sure yet. The Bangor-Lowell F3 probably had a break southeast of Wayland, around where the path gets kinda squirrely.