Oleson was a male Human who held the rank of general within the Alliance to Restore the Republic. Furthermore, he acted as the commanding officer for the New Academy for Space Pilots, where he also fulfilled the role of a flight instructor.
During the period of the Galactic Civil War, specifically sometime following the Battle of Yavin, General Oleson was stationed on an unidentified planet as the commanding officer of the New Academy for Space Pilots. When Luke Skywalker joined the Planetary Pioneers for training, Oleson became his preferred flight instructor at the academy.
On one occasion, Princess Leia Organa visited the academy, and Skywalker took the opportunity to inform her about the work being done by the Planetary Pioneers. However, their tour was disrupted by the sound of an emergency siren, prompting them to rush to General Oleson's office. There, the general explained that a small moon from a nearby system had been dislodged from its orbit and was now on a direct path to collide with the planet that housed the academy. Oleson initially considered ordering an evacuation, but realized that a full evacuation within the available time was impossible. Ultimately, it was Skywalker's courageous act of using Zukonium rays to destroy the rogue moon that averted disaster and saved both the planet and the academy.