Bishara, 20, and Pogu, 19 were among 57 girls who escaped from Boko Haram in Borno by jumping off the back of a truck in 2014. The 57 were among over 270 kidnapped from their secondarily school in Chibok, Borno State on April 14, 2014.
The incident sparked global outrage with a campaign hashtag of #bringbackourgirls calling for rescue of the girls.
Majority of the girls have since been freed by the terror group in prisoner swaps with the Nigerian government, although dozens still remain with the Boko Haram.
With the assistance of the Jubilee Campaign, a human rights group in Virginia, the pair relocated to the United States in August 2014. They then transferred to Canyonville Christian Academy in the state of Oregon, where they graduated.
"It's a wonderful school, I enjoyed my senior year because of the wonderful combination of different countries," said Bishara on her Facebook page.
The pair will attend Southeastern University on a full scholarship at the beginning of the upcoming school year.