The Odell S. Williams Now and Then African-American Museum was established by Sadie Roberts-Joseph in 2001. The museum is named for Odell S. Williams, a well-loved educator in the Baton Rouge area. It was founded as Joseph identified a need in the local community for a cultural space that celebrated African American history.

The museum has a range of vibrant exhibits, showcasing the contributions of local African Americans through history, across a range of different fields. These include, music, cuisine, education, politics and business. Visitors can step onboard an authentic bus from 1953 and explore Baton Rouge's role in the civil rights movement.

The museum's display on agriculture looks at the early plantation economy of the area, and the key crops that were grown then. It also explores the experience of the enslaved Africans that who used as labour on those plantations.

It has a broad events programme, and runs the area's annual Juneteenth event.