[RadioKid]

Returned from US, HIRAOKA started work in government office as an engineer and after ten years he quit the job and started his own company to make passenger car, freight car, bridge, railroad signals.

He earns so much money and also spend so much for his friends, artists and performers.

Also he started a party of his own music style.

As for the reference documents, the author of the book listed foreign documents as follows.

SPALDINGS OFFICIAL BASEBALL, A. G. SPALDING & BRS. 1876
THE BALL PLAYERS, ARBORHOUSE WILLIAM MORROW 1990
THE NEW DICKSON BASEBALL DICTIONARY, HARCOURT DRACE & COMPANY 1999

HIRAOKA wrote a letter to A. SPALDING to ask supporting baseball pro,motion in Japan. Spalding supported for years to support HIRAOKA by sending balls. bats and other baseball equipments for free.

In US, HIRAOKA stayed Poynton's in Boston who was famous for their contribution of education.

He went primary school (or grammar school) Reus (or Leus) in Boston. He skipped the school class and it was reported on news paper in Worcester, Massachusetts in 1873.

I hope these information help.