Hello Antonio.
O.k., one after another:
Oblt. d.R. Wilhelm Knauth is well known, I don't have to add anything I think.
Lt. Hans-Joachim Scholz: it's impossible that he had 48 tank kills.
He arrived at s.Pz.Abt. 505 just on 4.1.1944 and was heavily wounded on 5.2.1944. One month of action, o.k., but he got Verwundetenabzeichen, Panzerkampfabzeichen and Eisernes Kreuz 2. Klasse posthumously, so for sure not a high ranking Panzer ace.
His Frontbewährung was with Pz.Rgt. 29 in 1942, afterwards he attended the officers course and than just was used in Germany (replacement units), before coming over to 505.
He's mentioned on 3.2., 4.2. and 5.2.1944 and during that period up to 3 Tigers destroyed 18 tanks together, so I would estimate his tank kills at roughly 5 to 10 or so.
Unteroffizier, Richtschütze mit 48 Panzerabschüssen
This COULD be Uffz. Hermann Werner from 2./s.Pz.Abt. 505. I don't know if he really was a Richtschütze or tank driver or tank commander, but Uffz. Werner got the Deutsches Kreuz in Gold in April 1944 and that of course would be a perfect fit - just from the timeline - for this newspaper report from January 1944!
Just a guess ...
Oliver