author
Best known for the early 20th-century Bobby Blake adventures, this writer turned school life, sports, and far-flung travel into lively stories for young readers. The books have a fast, old-fashioned energy that still makes them easy to fall into.

by Frank A. Warner

by Frank A. Warner

by Frank A. Warner
Frank A. Warner is the credited author of the Bobby Blake series, a run of boys' adventure novels published in the early 1900s. Sources available here strongly connect the name with that series, including titles such as Bobby Blake at Rockledge School, Bobby Blake on the School Nine, Bobby Blake on a Plantation, and Bobby Blake in the Frozen North.
The books follow Bobby through boarding-school rivalries, team sports, outdoor escapades, and bigger adventure settings beyond school. One reference describes the series as having been created by the Stratemeyer Syndicate and originally published from 1915 to 1926, which fits the brisk, serialized style readers often expect from classic juvenile fiction of that era.
Reliable biographical details about the person behind the byline are limited in the sources I could confirm, so it is safest to remember Frank A. Warner primarily through the stories themselves: energetic, plot-driven tales written for young readers who liked friendship, competition, and suspense.