On this day, Nov. 6, in 1924, Lenore Houston became the first and only woman female special agent hired by FBI Director J. Edgar Hoover.

The next women agents weren't hired until 1972.

Hoover was appointed director of the Bureau of Investigation, the precursor to the FBI, in 1924. Houston served in the Philadelphia office. She resigned in 1928, shortly after being transferred to the Washington Field Office.

Shortly after Hoover's death in 1972, the FBI Academy admitted two female agents-in-training: Susan Lynn Roley, a Marine Corps lieutenant, and Joanne Pierce, a former nun.

Today, more than 2,000 women serve as FBI special agents, many in high-profile, leadership positions, including mother and daughter Special Agents Ethel and Marlo McGuire.

- Scott McCabe