Harold Rudolph Foster was born in Halifax, Nova Scotia, on August 16, 1892. Many of his English-Prussian ancestors had been seafarers from whom Hal inherited a love of the sea, the outdoors, and adventure. At eight-years-old, he captained a 12-foot raft (actually a plank) across Halifax Harbor. By ten he was skippering a 30-foot sloop in the Atlantic. 
 

His father died when he was four and in 1906 his financially-strapped stepfather moved the family to Winnipeg, Manitoba. Here he excelled in many sports: boxing, lacrosse, hockey, rugby, football, and baseball. Harold was largely self-educated as the failing family fortunes forced him to leave school in grade nine. He developed a passion for art. He immediately began a course of self-education at The Winnipeg Carnegie Library. To learn anatomy Hal would go to his room and sketch himself nude in front of an old cracked mirror. His artistic influences included E.A. Abbey, Howard Pyle, Arthur Rackham, Maxfield Parrish, J.C. Leyendecker, James Montgomery Flagg, and N.C. Wyeth. He helped support the family and pay for art school by hunting and fishing. His first art job was doing illustrations for the Hudson Bay Company mail order catalogue starting in 1910 and he later moved into freelancing. 

He met and married Helen Wells in 1915. Later, when he could not find enough work as an artist to support a wife and two small children, he moved north to work as a wilderness guide and prospector in the Canadian Shield area of Manitoba and Ontario. They found a "million dollar claim" which they worked the gold mine for nearly three years before claim jumpers stole it from them. Hal and family returned to Winnipeg where he resumed his art career but, in 1921, decided to scout out the more lucrative market in Chicago. To cut costs he left Helen and the kids in Winnipeg and made the thousand-mile trip by bicycle. Within hours after his arrival in the windy city in he was robbed and had to wire back home for emergency funds. 

Foster took a job with the Jahn & Ollier Engraving Company and enrolled in evening classes at the Chicago Art Institute. He later supplemented this education with night classes at the National Academy of Design and the Chicago Academy of Fine Arts. He eventually found work with major advertising firms such as the prestigious Palenske-Young Studio illustrating ads and magazine covers. He produced work for Northwest Paper, Popular Mechanics, Jekle Margarine, Southern Pacific Railroad, Illinois Pacific Railroad, and others.

In 1927, Joseph H. Neebe, an associate of Foster's, went to Tarzana, California to meet with Edgar Rice Burroughs. Neebe, founder of "Famous Books and Plays, Inc." had originated the idea of adapting popular material into comic strips. Neebe wanted to adapt Tarzan of the Apes into a cartoon strip and Burroughs agreed. Originally, Neebe approached Tarzan cover artist J. Allen St. John to do the adaptation, but St. John declined once he learned what the deadlines were. Neebe then offered the job of adapting Burroughs' first Tarzan novel to his colleague, Foster.  "I had no instructions at all, just the book." Foster claimed, "I did the adaptation myself." When he finished his adaptation of Tarzan of the Apes, he had drawn 300 panels comprising 60 daily strips, each consisting of five captioned panels. Despite the high quality of this series, it was a bit of a hard sell. Eventually, however, it debuted on January 7, 1929 in about a dozen US and Canadian newspapers -- including the Halifax Chronicle. 

Although Dick Calkin's Buck Rogers also debuted on that day, it was Foster's sense of realism, composition, draftsmanship, and his fluid anatomy that would forever mark him as "The Father of the Adventure Strip." His story-strip technique of using captions instead of word balloons allowed him to create compositions containing amazingly detailed backgrounds unhindered by text. The Tarzan strips were published in hardcover book format by Grosset and Dunlap in August of 1929. 
 

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Reader response to the strips was overwhelming and distribution was taken over by United Features Syndicate.  Foster, however, considered himself an artist first and felt cartooning was an inferior medium and went back to advertising. 

Metropolitan artist Rex Maxon was then hired to take over the strip and in March 15, 1931, produced the debut Tarzan colour Sunday page as well. Burroughs was very unhappy with the quality of Maxon's work and eventually Foster was lured back to take over the Sunday series starting with the September 27, 1931 page. He still felt he would be prostituting his talent, but with no work coming in he begrudgingly accepted the Tarzan offer. 

After an uninspired start, in response to the strip's amazing popularity, Foster soon adapted to this relatively new art form and his work became more inspired. In fact, his art improved so dramatically that the pages he created through the '30s are some of the best in the history of comics. The strip became a source of pride and he brought to it all of his talents. Foster was the first illustrator to bring a painterly, impressionistic approach to comics. In his hands the Tarzan strip became as epic as any movie. His two-year "Egyptian" sequence is one of the watershed events in the medium and its quality and consistency has never been matched. Foster created the definitive Tarzan. He established a look of nobility and aristocracy that would influence the many successful Tarzan artists to follow.

In 1937 he moved on to create his own strip, Prince Valiant, which he lovingly crafted -- story, art and colouring -- until 1970 when he commissioned John Cullen Murphy to take over the artwork, but he continued to do layouts, write and colour the strip for the next nine years. The art techniques and scripting skills he perfected in the Tarzan series served him well in this much-loved, critically-acclaimed strip. Hal Foster died on July 25, 1982, three weeks before his 90th birthday.