Complex sentence: Hertz tried both persuasion and such force as he could muster to influence them; he added to his credibility among these immigrants by persuading Rabbi Yehezkel Abramsky to become head of the London Beth Din.
Split into simpler sentences: Hertz tried both persuasion and such force as he could muster to influence them. He added to his credibility among these immigrants by persuading Rabbi Yehezkel Abramsky to become head of the London Beth Din.