The old priest described Tomoari as 'a big man with swords on both sides', so we can image the scholar of natural history with a healthy body and strong mind who carried out his study vigorously.
老僧は伴存を「体躯肥大の人にて、両刀を帯び居たり」と述べており、これらから、頑健な身体と強靭な精神を以って研究に邁進した博物学者の姿が今日に伝わってくる。