Babe Dahlgren, born Ellsworth Tenney Dahlgren on June 15, 1912, was an American professional baseball player whose career in Major League Baseball (MLB) spanned over a decade. Dahlgren was primarily known for his role as a first baseman, although he was versatile enough to play other infield positions when needed. His MLB journey is notably marked by his debut with the Boston Red Sox in 1935, and he played for several teams throughout his career, including the New York Yankees, Chicago Cubs, St. Louis Browns, Philadelphia Phillies, Pittsburgh Pirates, and Brooklyn Dodgers, before concluding his major league tenure with the Philadelphia Athletics in 1946.

Dahlgren's most significant moment came early in his career when he replaced the legendary Lou Gehrig in the New York Yankees' lineup on May 2, 1939, ending Gehrig's consecutive games played streak at 2,130. This event thrust Dahlgren into the spotlight, as he was stepping in for one of baseball's most beloved figures. Despite the pressure, Dahlgren performed admirably, hitting a home run in his first game after replacing Gehrig and contributing solidly to the team's efforts during his tenure.

Throughout his career, Dahlgren was known for his defensive skills at first base and his moderate hitting ability. He compiled a career batting average of .261, hit 82 home runs, and drove in 569 runs. His best season offensively came in 1940 with the Yankees, where he posted career highs in home runs (12) and RBIs (73). Dahlgren's defensive prowess was also well-regarded, as he consistently posted fielding percentages above the league average for first basemen.

Despite his contributions on the field, Dahlgren's career was not without controversy. He was the subject of rumors regarding marijuana use, which he vehemently denied and which were never substantiated. These rumors, however, may have impacted his career, as Dahlgren found himself traded multiple times and struggled to find a permanent home with any team.

After his playing days, Dahlgren remained involved in baseball, including serving as a minor league manager and scout. He was also an advocate for the use of batting helmets and was among the first to experiment with a helmet after suffering a serious beaning incident in the minor leagues.

Babe Dahlgren passed away on September 4, 1996, leaving behind a legacy as a solid and dependable player who found himself at the center of one of baseball's most historic moments. His career, while not Hall of Fame caliber, was marked by professionalism, versatility, and a notable moment in baseball history that will forever link him to one of the game's greatest legends, Lou Gehrig.