Betty B. Baehr (1916-1994) was a librarian at the University of Maryland from 1947 until 1983. She was born in Washington to Brigardier General Carl Adolph Baehr and Emilie B. Baehr, and grew up in various places around the United States and the Philippines. She received a bachelor's degree from George Washington University, a master's in library science from the University of Kentucky, and a master's in American studies from the University of Maryland.
During World War II, she worked as a secretary and office manager at the Buffalo Forge Company. She joined the University of Maryland Libraries in 1947, and worked at McKeldin Library as a circulation manager, and later an inter-library loan librarian. She retired in the mid-1980s.
She was a lifetime member of the American Library Association, national secretary of the Daughters of the U.S. Army, and an active member of Christ Episcopal Church in Kensington, Md.