His son SAKANOUE no 樹並 was probably engaged in the management of Tohoku, which was the hereditary of the Sakanoue clan, as he is said have been the Akitajo no suke (provincial governor of Akita-jo castle in Dewa Province).
その子の坂上樹並は秋田城介となっているから、坂上氏伝来の東北経営に従事したのであろう。