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The Gamma Beta Phi Society

Meet the Staff


April McMillan brings her years of nonprofit leadership experience to the Gamma Beta Phi Society as the National Executive Director. She worked in research for 25 years and in one of the nation’s largest youth serving organizations since 2014.

April lives in Knoxville, Tennessee with her husband of 27 years and her daughter. The family enjoys traveling, movies, and spending time at the lake.



La’Soneka (Nikki) Isabell is a native Tennessean. She believes in both the importance & power of education. Nikki graduated from Tennessee Technological University in 2006 with a Bachelor of Arts in Sociology, as a non-traditional student. She subsequently went on to work for the institution as an Admissions Counselor from 2007-2009, which only intensified her love for higher education. Shortly after accepting the Admissions Counselor position, Nikki went on to pursue and obtain a Masters of Arts in Education-Instructional Leadership from Tennessee Tech University in 2009.

Professionally, Nikki has had many exciting career opportunities, but her most recent path has led her to National Headquarters of The Gamma Beta Phi Society. In August of 2017, Nikki accepted the position of Business Manager & feels so blessed to work in a dream environment with the best team ever! She loves the customer service element in her job, as it allows her to continue living out her life-long passion to serve & connect with others in a positive & professional manner, while being able to build meaningful relationships. Nikki is thankful to be a part of such a great organization & is thrilled that she gets a front row seat at all the wonderful things that are in store for Gamma Beta Phi! She welcomes you to call, email, or even stop by National Headquarters for a quick visit if you’re ever in the Knoxville area & need assistance or would just like to say “Hi”, she is happy to serve & ready to greet you with a warm smile!

She, along with her husband (Xavier) & 4-year-old daughter (Layla) live in Maryville, just outside of Knoxville. Nikki is extremely faith-driven, family oriented & loves reading, shopping, trying new foods, traveling & playing UNO with her two most favorite people on the planet! Nikki’s life philosophy that she strives to live by is “there is always beauty, grace, & something magical to be found in every day!”

Shelby Smelcer


Shelby Smelcer, our Sales and Inductions Specialist, is from Knoxville, Tennessee. Her interests and hobbies include traveling, fashion, and attending music festivals. Her mantra is radiate positivity, be unique, and embrace the unknown. She believes in an experienced based life style rather than a materialistic one. Her favorite Winnie The Pooh quote is “The things that make me different are the things that make me.” -Piglet