The one-hour ceremony included comments from Roosevelt alumni who graduated from the school in various years.
Three Roosevelt graduates from the Class of 1984 held a banner while standing in the parking lot of the school.
Roosevelt was created after 600 white students led a four-day strike to protest the transfer of 18 Black students to the all-white Emerson High School.
In the fall, some will attend other schools in Gary to finish their high school education while Roosevelt fades into history.
Ironically, Roosevelt survived longer than Gary’s other historic high schools.