Frederick Arthur McKenzie (1869–1931) was a correspondent active in the early 20th century who wrote several books on geopolitical developments in eastern Asia. He was born in Quebec, and described himself as "Scots-Canadian". He briefly contributed to the Pall Mall Gazette, and then for several years he worked with the Daily Mail as traveling correspondent in the Far East. In The Russian Crucifixion, MacKenzie mentions "the days that Jack London and I spent together in Korea and Manchuria" without further elaboration. 
^"A LIFE OF CRIME". Wanganui Herald. 12 October 1901. p. 1. Retrieved 13 November 2010. Volume XXXV, Issue 10468 ... street described by Mr. McKenzie in an article which appeared in the Daily Mail a few weeks back as the 'worst street in London
^Reich, Robert B. (1992-02-09). "Is Japan Out to Get Us?". The New York Times. Retrieved 13 November 2010. lurid exposes, such as Frederick MacKenzie's "American Invaders," about the American economic onslaught and its baleful consequences.