Yoshifusa and Yoshinaga were students of  Hizen Shodai Tadayoshi. Both are Jo-saku and worked in the early Shinto through the 1640s prior to Kanbun.
Yoshinaga went to Kyoto with his father, Munenaga, where both father and son learned carving from Shinto great, Umetada Myoju.  They are the top distinguished carvers in history and rank with Shinto great, Kotetsu and with Shinshinto Yoshitane, brother of Naotane, of the Masahide School.
Yoshinaga’s carving will be found on The greatest Hizen smiths, Shodai Tadayoshi, Nidai Tadahiro, Yoshifusa and Shodai Masahiro. 
With NBTHK Kanteisho