Dr. Long was an employee of Gotham State University. Given his authority over other employees, it is likely he was the chancellor or held similar office.
Long was an old schoolmate of Thomas Wayne, but he had nothing but contempt for the playboy lifestyle led by his son, whom, as a result, he felt was only shaming his family's name. Long was also the man responsible for the firing of Professor Jonathan Crane, believing that his experiments in fear psychology had gone too far. As a result, when Crane became the Scarecrow, he sought revenge against him. Long was evidently doused with Scarecrow's fear toxin and kidnapped, but he was ultimately rescued by Batman.