Begins when Melba and eight other black men and women in their forties return to their home state of Arkansas to meet the then-governor, Bill Clinton. Melba, the narrator and author, explains that the group, called the Little Rock Nine, is visiting Central High School in Little Rock.
Samuel is the antecedent, and his is the pronoun that refers back to the antecedent.
It is a COMPOUND SENTENCE as it is made up of two independent clause (a clause has a subject an a predicate and it does not need the other clause in order to convey meaning). This independent clauses are joined by the coordinating conjuction “and”.
2 is the answer to your problem