Harrie Irving Hancock ( 1866 ?- 1922 ) was an American chemist and writer, mainly remembered as an author of children's literature and juveniles in the late 19th and early 20th centuries, and as having written a fictional depiction of a German invasion of the USA.

This seems to refer to Harrie Irving Hancock, but it is not completely certain-hence the above question mark following the date of his birth.

( The story is introduced as having been " Written in Manila by our War Correspondent, Harrie Irving Hancock " and is mentioned as being " A Companion Story to ' Off with the Third '".

Another is Li Shoon, a fictional villain of Chinese ethnicity created by H. Irving Hancock, first published in 1916.

For some time it was considered that, unlike other writers, he invariably used his own name, in the form " H. Irving Hancock ".