Roger "Doc" Cramer, an outfielder known for his consistent hitting and defensive skills, played Major League Baseball for several teams over a lengthy career. Born on July 22, 1905, in Beach Haven, New Jersey, Cramer began his professional journey with the Philadelphia Athletics. He made his MLB debut on September 18, 1929, and quickly established himself as a reliable player.

Cramer was known for his ability to hit for average, a skill that kept him in the lineup throughout his career. He batted left-handed and threw right-handed, a combination that served him well in the batter's box and the outfield. Over the years, he became known for his contact hitting, rarely striking out and consistently putting the ball in play. This approach helped him maintain a career batting average of .296.

During his time with the Athletics, Cramer played under the management of Connie Mack, one of baseball's legendary figures. He was part of the team during a successful era, contributing to their strong performances in the early 1930s. In 1931, Cramer played in the World Series, although the Athletics fell to the St. Louis Cardinals in seven games.

In 1936, Cramer was traded to the Boston Red Sox, where he continued to excel as a leadoff hitter. His tenure with the Red Sox saw him lead the American League in at-bats multiple times, a testament to his durability and the trust placed in him by his managers. Cramer was selected to the All-Star team five times during his career, reflecting his status as one of the league's consistent performers.

Cramer's career took another turn when he joined the Washington Senators in 1941. Although his time with the Senators was brief, he continued to demonstrate his hitting prowess. The following year, he moved to the Detroit Tigers, where he would spend the final years of his career. With the Tigers, Cramer enjoyed a resurgence, helping the team capture the American League pennant in 1945. That year, the Tigers went on to win the World Series, defeating the Chicago Cubs in seven games. Cramer's performance in the series was solid, contributing to the Tigers' championship victory.

Throughout his career, Cramer was known for his defensive abilities in the outfield. He had a strong arm and was adept at tracking fly balls, making him a valuable asset to his teams. His longevity in the game was remarkable, as he played until 1948, retiring at the age of 42. By the end of his career, Cramer had accumulated over 2,700 hits, placing him among the top hitters of his era.

After retiring from playing, Cramer remained involved in baseball, working as a scout for several teams.