Lenna B. Arnold (October 29, 1920 – January 22, 2010) was a pitcher who played in the All-American Girls Professional Baseball League. Listed at 5' 7", 135 lb., she batted and threw right handed.^[1][2]

Arnold was an outstanding softball pitcher before joining the AAGPBL with her hometown Fort Wayne Daisies in the 1946 season.^[3]

Born in Fort Wayne, Indiana, Arnold was the only daughter of two children born to John E., Sr. and Marie (Klemm) Arnold. She was a 1939 graduate of Central High School, bachelor degree from Ball State Teachers College and masters degree at Indiana University. An all-around athlete, she excelled at softball with the Uhligs Machine Shop and also played basketball for the City Light squad, while participating in golf, skiing and bowling.^[2]

״Sis״, as her Daisies teammates called her, had a modest career during her only season in the league, ending with a 2–4 record in just six pitching appearances. As a hitter, she went 3-for-14 for a .214 batting average.^[1]

After that, she labored as a teacher during 35 years for Fort Wayne Community Schools, teaching at Central and Northrop high schools, before retiring in 1978.^[2]

Following her retirement, she followed the Indiana Hoosiers on the basketball court and enjoyed travelling throughout the United States in a motorhome.^[2]

In 1988, Arnold received further recognition when she became part of Women in Baseball, a permanent display based at the Baseball Hall of Fame and Museum in Cooperstown, New York, which was unveiled to honor the entire All-American Girls Professional Baseball League.

She died in 2010 at her home of Fort Wayne at the age of 89.^[2]

^[1][4]