Final answer:
Mary Lou Allison Gardner Little is known for founding Alpha Kappa Alpha Inc., the first Black women's intercollegiate Greek organization, at Howard University, which is a part of the National Pan-Hellenic Council.
Step-by-step explanation:
Founder Mary Lou Allison Gardner Little significantly contributed to the sorority by establishing Alpha Kappa Alpha Inc., the first Black women's intercollegiate Greek organization founded at a Black university, Howard University in Washington, D.C. in 1908. As a part of the National Pan-Hellenic Council, this sorority falls under a collaborative organization that includes nine International Greek fraternities and sororities. Members of Alpha Kappa Alpha have included prominent figures such as Edwidge Danticat, Kamala Harris, Toni Morrison, Phylicia Rashad, Ellen Johnson Sirleaf, and Wanda Sykes, who have all contributed to various fields such as literature, politics, entertainment, and advocacy for social justice. Mary Lou Allison Gardner Little's legacy is seen in the empowerment of women and the support for their higher education, professional achievements, and community involvement.