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Sunday Speaker Series Online: From Slavery to South Texas — Callis Family History

June 20 @ 2:00 pm - 3:00 pm

The Museum of South Texas History will host the Sunday Speaker Series Online presentation, “From Slavery to South Texas: Callis Family History,” featuring Nicholas Maddox, Sabrina Walker-Hernandez and Floyd Hannah on Facebook Live. (If you miss the presentation, you can watch the recording here.)

The presentation will reflect on the history and significance of Juneteenth in the Rio Grande Valley. Maddox will share notes on his work with the Community Historical Archaeology Project with Schools (CHAPS) program’s documentary titled “Just A Ferry Ride to Freedom,” and the story of the Underground Railroad in the RGV. Walker-Hernandez will share the origin story of Lewis Callis, who was a resident of Edinburg for more than 73 years. Hannah, a McAllen native, and the panel will discuss the context of Juneteenth celebrations and the experiences of Black life in the Rio Grande Valley.

Walker-Hernandez is the President and CEO of Supporting World Hope. She has more than 25 years of experience in nonprofit management, fundraising and leadership and is certified in Nonprofit Management by Harvard Business School. She has successfully increased operation revenue and been responsible for the planning and operations of capital campaign for Boys & Girls Clubs in Edinburg. She has facilitated numerous workshops with hundreds of nonprofit professionals and is a master trainer for the Boys & Girls Clubs of America.

Maddox was born and raised in Washington, DC and credits the man he is today to his loving mother and the godly men from his local church. Maddox speaks at conferences across the state, businesses and schools in the community. He is a graduate of Leadership McAllen (Class 40), Southeastern Baptist Theological Seminary and North Carolina Central University. Nicholas serves as the Associate Pastor at BT Church and believes that his greatest honor is being the proud husband of Nikki and the proud father of their daughter, Sanaa.

Hannah was born and raised in McAllen. He taught elementary students at the McAllen Independent School District for 33 years. Currently, he is enjoying retirement in McAllen.

This program is made possible with generous support from the Carmen C. Guerra Endowment. Mrs. Guerra was deeply committed to supporting educational opportunities in the Rio Grande Valley. This named endowment was created at the museum by her family to honor her memory and to continue her commitment to providing opportunities for education to the community.


June 20
2:00 pm - 3:00 pm