Final answer:
The specific 'Pearl' who was initiated during the first ritualistic initiation of Alpha Kappa Alpha and who helped incorporate the sorority in 1913 is not named in the information provided, thus additional research is necessary to identify her. Alpha Kappa Alpha has a distinguished membership, including several notable figures.
Step-by-step explanation:
The individual who was initiated during the first ritualistic initiation of Alpha Kappa Alpha and helped incorporate the sorority in 1913 was one of the founders and incorporators of the organization. Unfortunately, the specific name of the Pearl is not provided in the references available here, and a precise answer would require additional research into the sorority's history. Alpha Kappa Alpha was the first Black women's intercollegiate Greek organization founded at a Black university, Howard University, and has since been home to many prominent members including Edwidge Danticat, Kamala Harris, Toni Morrison, Phylicia Rashad, Ellen Johnson Sirleaf, and Wanda Sykes. These women have exemplified the values and achievements that the sorority promotes among its members.