My sil used to volunteer for ATC duty there. She’s there now with a diff aircraft.
A crazy few days for ATC peeps at OSH! Some more info. here:
https://www.eaa.org/airventure/eaa-airventure-news-and-multimedia/eaa-airventure-news/eaa-airventure-oshkosh/07-25-2018-behind-the-scenes-with-oshkosh-air-traffic-control