Okimoto's legitimate wife was a daughter of Kanyuzaemon Kiyonobu NUMATA, while his second wife, who he married later, was an adopted daughter of Muneshige TACHIBANA (but was born to Shigetane TAKAHASHI).
正室は沼田勘由左衛門清延の娘、継室は後に再婚した立花宗茂の養女（高橋鎮種の娘）。