His family name was Shiba, his respectful name given after his death was Tsugumasa or Tsugimasa, and his given name used while he was young was Matashiro and, later, Tsukasa.
姓は柴（しば）、諱（いみな）は次正（つぐまさ/つぎまさ）、幼名は又四郎（またしろう）のち司（つかさ）。