As for his influence on Saigo's calligraphy, according to Yasutsugu SHIGENO, at first Saigo learned Oie-ryu style (the Shorenin school which was very popular calligraphy of Japanese style) from Hansuke FUKUSHIMA, then learned calligraphy from Seppo, so Saigo's calligraphy was a mixture of Japanese style from Fukushima and Chinese style from Kawaguchi.
西郷の書への影響については、重野安繹によれば、西郷は最初、福島半助という者から御家流を習った後、雪篷から書を学んだので、福島の和様と川口の唐様が混っているという。