Because what happened to the clan at that time was not written in the "Amarume shi Kyuki" (Old Record by the Amarume Clan) which had many details of local lords, the clan, which was ranked in the same level as the Osaki and the Mogami clans as a family of the Ashikaga clan, boasted of high family status.
この頃の事は国人衆の記述が多い『余目氏旧記』にも出でこない事を考えると、足利一門として大崎氏や最上氏と同列に認識されていたと思われ、塩松氏（石橋氏）は高い家格を誇っていたこともわかる。