>>510644108
Yair Davidy is, unfortunately, one of the best living researchers on the topic.
E. Raymond Capt was probably the best.
Sheldon Emry was another.
Arnold Murray has a few short documentaries at the Shepard's Chapel. His son, Dennis, carries on the work, but not as a primary focus.
That's it.
Then you have people like us.
We await the return of Christ to regather His people.