The powerbomb

[tafkaga]

I read that Lou Thesz accidentally invented the powerbomb and then would use it from time to time, but do we know who was the first wrestler to use it as a regular move in their moveset? 

The first powerbomb I saw on television was delivered by Sid, but wasn't it pretty common in Japan prior?  I seem to recall Tsuruta and maybe Kabuki doing it in the late 80's.

[chrom]

I believe Terry Gordy was the first to use it as a finisher in the States

[GodzillaIsMyMonster]

I think Sid was the first person on the national stage to use it.

[JoDaNa1281]

I remember Judy Martin using it in WWF.

[James Fabiano]

Nova or Ryback joke goes here.