Final answer:
The provided references mention important female political figures like Roberta MacAdams and Shirley Chisholm but do not give information about the ABCA. Therefore, we cannot determine the first woman elected president of ABCA.
Step-by-step explanation:
The question does not provide information about what ABCA stands for, making it challenging to determine who the first female president of said organization was, given the names provided. The information given as reference does not directly answer the question but provides examples of pioneering women in political history:
- Roberta MacAdams, one of the first two women elected to a legislature within the British Empire.
- Shirley Chisholm, the first African American woman elected to the U.S. House of Representatives.
These historical milestones are inspiring, yet they do not provide us with an accurate answer to the specific question about ABCA.