Conversation so far:
when did Frederick Russell Burnham get to mexico
1909
was the Yaqui River irrigation project a success
Just as the irrigation and mining projects were nearing completion in 1912, a long series of Mexican revolutions began. In 1917, Mexico passed laws prohibiting the sale of land to foreigners.

Question: did he return to america
Self-contained rewrite: did Frederick Russell Burnham return to america after serving in South Africa