Nobody

I am sorry. That is my careless mistake. Showa 20 year (1945) is correct.

義忠 – Yoshitada 昭和二十年三月 – Showa 23rd year, 3rd month

木國住真改文久二年□月日鍛之 – Kinokuni ju Shinkai forged this in Bunkyu 2nd year (1862) X month. 木國 (Kinokuni) is another name for 紀伊國 (Kii no kuni).

Johshuya(常州屋) is a part of an import-export company MOTOYA in Ibaraki. Ref. MOTOYA & CO . I suspect that Johshuya is not a professional sword shop but an export agent. A reliable dealer never reads 上野大掾 (Kozuke Daijo) as Ueno Daijo. The sword shop in the pictures you posted is Bizenya (備前屋) in Okayama. Ref. 備前屋 | 備前屋は岡山の刀剣専門店です。日本刀の通販、販売、買取を取り扱っております。

宗與 – Soyo (Yokoya school) Ref. The Yokoya school in Edo

I guess that such an order was made at the birth of orderer's granddaughter in most cases.

It is a ordered tanto made for Hisako.

於昭和五十一年度新作名刀展出品 – Presented work at the competition of modern Japanese swords in fiscal year 1976 写江雪左文(字)上位入選作 – Replica of Kosetsu Samonji, higher winning work (The character *字” should be there. And original Kosetsu Samonji is a tachi.) 摂津八尾住 – Living in Settsu Yao, 平安城沖芝源信昭作之 – Heianjo Okishiba Minamoto Nobuaki made this. I saw the listing of the tanto on some auctions. The tanto does not match the writing on the box.

因州鳥取住正則 (Inshu Tottori ju Masanori) – Living in Tottori of Inaba province, Masanori 一蝅堂 乘意 – Issando Joi Ref. Issando Joi 一蚕堂乗意 | British Museum

The provincial capital of Hitachi province (常陸國) was Mito (水戸). Suifu (水府) was another name for Mito.

(Owner’s address and name) 和歌山縣伊都郡河根村大字河根 – Wakayama-ken, Ito-gun, Kane-mura, O’aza Kane 亀澗光治 – Kametani Koji/Mitsuji/Mitsuharu 三品義明 – Mishina Yoshiaki - One of WWII smiths in Seki

I clipped the image and corrected the distortion. It might be 正卜 - Masaura.

They might be Obikazari (帯飾り) - Sash ornament. Ref. 銀製ぶら（帯飾り）｜珍しい和装の装身具（アクセサリー）｜オリジナル帯飾りクリップ（プレート）付き | べっ甲かんざし･髪飾り･和装小物専門店 銀座かなめ屋

Ref.

和泉守辻助九郎兼重 – Izumi no kami Tsuji Sukekuro Kaneshige