Final answer:
Breanna Holbert was the first African-American female to be elected National FFA President, separate from Shirley Chisholm's achievements.
Step-by-step explanation:
The first African-American female to be elected National FFA President is Breanna Holbert. This question is distinct from the historical information provided about Shirley Chisholm, who in November 1968, became the first African American woman to be elected to the House of Representatives, which is an impressive milestone in its own right. However, the trailblazing achievements of these notable figures in different spheres showcase the progressive steps toward inclusivity and diversity.