Rennie was born in 1854 in Illinois, the son of William A. Renne of England and Hannah Renne of New York.[1]
Rennie and Sarah E. Emerson were married on December 3, 1883, in Chicago, Illinois.[2] They came to Los Angeles in 1885.[3]
They had two sons, Robert and Walter.[4]
In October 1910 Rennie sued Raymond Wayman of the Wilmington Journal, alleging libel and asking $50,000 in damages.He claimed that the Journal, in an article headlined "The Squealing of a Rat," had called him a "cheap little squirt" who "stole editorials," a "lovely ass," and a "long-tailed sewer rat." He said the article painted him as "out of sympathy" with the families of the victims of the 1910 Los Angeles Times bombing.[14][15]
In 1911, the Vanguard's ownership consisted of William A. Rennie, Robert R. Rennie, Walter W. Rennie, and Mrs. S.E. Rennie.[16]