Re: Martial Arts in the Pulp era
All the martial arts manuevers given under "JuJitsu" on page 401 of 5th ed (rev) would be known to any good wrestler, with the possible exception of the strike (while it would not be part of wrestling, most wrestlers do know how to throw a punch.) The names would be different, (sacrifice throw would be takedown, for instance), but the manuevers would be known. Disarm would only be known to wrestlers who practiced self-defense techniques, but that was not uncommon.
Anyone with "self defense" training, police training, or military training (from the Great War?) could reasonably pick any of the boxing, dirty infighting, jujitsu or wrestling maneuvers, and possibly also the karate knifehand strike (called the judo chop back then).
BTW, the "legsweep" manuever given for Kung Fu is most definitely part of Ju-Jitsu, it is even legal in sport judo. But it might not be part of wrestling, I cannot decide if that maneuver simulates the single leg pickup.
One possible rules problem here is that most wrestling throw/takedowns do not do damage, generally only "slam" type ones do. I will have to try and put together a list of what I think simulates wrestling moves better.