No idea when this club gave up the ghost, a Google search didn’t turn up anything recent but apparently 50 years ago it was quite active. AND, I do know one of the members/autocross competitors, contacted him last night (retired Colonel, USAF, one each) and he sent this photo of him in his E-Type during one of the events.
In a follow-up email, Charlie noted he’d also autocrossed a Sunbeam Alpine and his ’69 Alfa Romeo, which he still owns (“Was fun beating Porsches in an Italian car. I won one high speed event in Omaha put on by the Porsche club – fastest four cylinder time – but my trophy said ‘Fastest Non-Porsche’”). While at Grand Forks he also regularly participated in rallyes, hill climbs and ice races.