Yitzchok Zev Soloveitchik
…Jerusalem. After Soloveitchik's death in 1959, his son Berel took over his father's position as rosh yeshiva of Yeshivas Brisk. Another of his sons was Meshulam Dovid Soloveitchik. Soloveitchik did not recite from memory when speaking, he read all his sources from their original works…