The next great liquidation after Hull was when the Dreiers sold off their stuff with Legendary. They were among the collectors who went all-in at the Hull auctions. Unfortunately, convicted felon Doug Allen's downfall at Legendary ultimately took the records of that sale into liquidation, with Goldin buying the records and taking them out of the publicly available realm.
Following that was the estate of Harry Shaffer. Harry was a pioneering boxing memorabilia dealer, very old-school, and had an astounding uncatalogued inventory. The stuff that came out of his estate (which MEARS sold), was just amazing. He had the only R340 Dempsey, for example:
Unfortunately, MEARS did not do a good job of cataloguing what was there: the vast majority of the estate was blown out in a couple of tractor-trailer-sized random lots.
The most recent one was with Lelands in 2018 when longtime boxing collector Jim Heffron liquidated his collection. Lots of rare cards, many from the Hull Collection.