Yoshitoki inherited Ishikawa-no-sho (manor in Ishikawa), which had been the base of the Kawachi-Genji (the Minamoto clan of Kawachi Province) since his father Yoshiie had located it; and MINAMOTO no Yoshimoto was his son, and his grandson MINAMOTO no Yoshikane, who served as Hogandai (secretary) of Ishikawa, was called 'the best Minamoto clan in Kawachi Province' by MINAMOTO no Yoritomo.
義時は、父の義家以来の河内源氏本拠地の石川荘を相続し、子に源義基が、孫に源頼朝が「河内随一の源氏」と評した石川判官代の源義兼がいる。