In his playing days, he stood 6 feet 3 inches (1.91 m) tall, weighed 195 pounds (88 kg), and threw and batted right-handed.

He was nicknamed "Footsie" by teammates because he often had difficulty finding shoes that fit him properly.

[1] Lenhardt was born in Alton, Illinois, paternal side of Danube Swabians Ancestry from Austria-Hungary.

He would play in the American League for five seasons (1950–54) for the Browns (twice), Chicago White Sox, Boston Red Sox (twice), Detroit Tigers and Baltimore Orioles, where as a transplanted St. Louis Brown he was a member of the first modern Baltimore MLB team in 1954.

After finishing his playing career with Boston farm clubs in 1955–56, Lenhardt became a Midwest-area scout for the Red Sox for over four decades, interrupting that tenure only to serve as first-base coach on Eddie Kasko's staff in Boston from 1970 to 1973.