I have heard that Rabbi Yaakov Yitzchak Ruderman of Ner Israel quoted Rabbi Meir Simcha (the Or Sameach or Meshech Chochma) in almost every, or possibly even in every, Torah address to the school. I have heard, further, that he did so as an act of hakaras hatov (recognizing beneficence) to Rabbi Meir Simcha for something the latter did for him when he was young. Does anyone know the story?
According to Rabbi Frand - Rabbi Ruderman corresponded with the Ohr Sameach.
Those old enough to remember Rav Ruderman saw a connection to the glory of what European Jewry was in its prime. He corresponded with the Ohr Sameach.