His Fujisawa Hōsai, 1980- v. 1, t.p. (Fujisawa Hōsai) p. 274 (in 1957, changed forename Kuranosuke to Hōsai; "igo" player)
NDL choshamei, 1979 (Fujisawa, Hōsai, 1919- ; also Fujisawa, Kuranosuke)
Wikipedia, viewed on 10th July 2015 (Hosai Fujisawa (藤沢 朋斎 Fujisawa Hōsai?, born as Kuranosuke Fujisawa (藤沢 庫之助 Fujisawa Kuranosuke), March 5, 1919 – August 2, 1993) was a professional Go player.) https://en.wikipedia.org/wiki/Hosai_Fujisawa