Besides, Tomoyoshi YOSHIOKA who was the 33rd Regimental Commander of hohei which completely destroyed in 'the fierce battle around Kankyotonsangenya' of Battle of Mukden said to be the fiercest battle of the Russo-Japanese War had been YAMAZA's close friend since his childhood and married YAMAZA's younger sister to become his younger brother-in-law.
また、日露戦争における最大の激戦とされる奉天会戦の「干洪屯三軒屋附近の激戦」において全滅した歩兵第33連隊の連隊長吉岡友愛は、山座の少年時代からの親友であり、山座の妹と結婚し義弟であった。