Ishimaru 【石丸】6 The Japanese surnames etymology dictionary.
Toukyou-to . Terrain . From the garden of the story. Tell the Meiji New surname by Monk at Teruji Temple of Rinzai sect. The location of the temple is unknown. There is also a story that it was an alias of the temple from the none of the Hakuba Temple in Luoyang City, Henan Province, People's Republic of China. Thai is pronounced in tradition.