Final answer:
James Meredith was assisted by civil rights organizations and federal marshals to integrate the University of Mississippi.
Step-by-step explanation:
James Meredith was assisted in his efforts to integrate the University of Mississippi by various civil rights organizations including the SCLC, SNCC, the NAACP, and CORE. These organizations united to support and publicize Meredith's march and to bring attention to the discrimination faced by black residents in the Deep South. Additionally, federal marshals were assigned to escort Meredith to class and protect him and his family after their home was attacked. The integration of Ole Miss was a significant event in the civil rights movement.