I just found your post while searching if Charlie Kirk referenced Dr Francis Schaeffer. I too met Dr Schaeffer and his wife speaking at the University of Wisconsin maybe a year before he passed away. Both he and his wife took time to speak with me. Charlie Kirk’s beliefs and the way he engaged college students reminded me of Dr Schaffer. I have all of the Dr’s works, admired him all my adult life. Now I’m seeing that same Spirit was in Charlie Kirk. May God comfort and bless his family and continue his ministry and vision.