At first, Kanetane hoped Nobutane, his oldest son would be the next successor to Hirata's school, and complete the work, however, Nobutane died at the age of 45 on 24th January 1872, so he had to look for another suitable scholar for the work.
当初銕胤は学統を継承する長男の延胤に古史伝の完成を所望していたが、明治5年正月廿四日に45歳で逝去した為、苦渋の選択をせざるを得なかつた。