In 1940, Yasuyuki MIYAKE (six years old at that time), who was the oldest son of Tokuro MIYAKE, the ninth, became an adopted son of the daughter of Motokiyo YAMAWAKI, the 16th family head, inheriting the family as Motohide YAMAWAKI, the 19th family head.
そして昭和15年（1940年）には、9世三宅藤九郎の長男・三宅保之（当時6歳）が16世宗家山脇元清の娘の養子になって、19世宗家山脇元秀となった。