Unlike Gary to its immediate west, Miller avoided much of the industrial development spearheaded by U.S. Steel in the early 20th century. In essence, U.S. Steel helped create Gary, but Miller was a more affluent and suburban community. Historian Andruw Hurley discusses Miller's relationship with Gary and U.S. steel as one of contention, notably from the 1950s to 1970s.
From the 1950s onward, Gary's middle-class activists saw environmental protection as a means of sustaining the suburban ideal....In this respect, Miller's environmentalists were remarkably successful... Few Miller activists, after all, dependence on U.S. Steel or any other manufacturing firm for their livelihood.4
Furthermore, Miller residents routinely used tactics to prevent African Americans from moving to Miller, including forbidding people to put For Sale signs in their lawns upon putting a house up for sale. It wasn't until after the Aquatorium fell into disrepair, in roughly the 1960s, that Civil Rights activists allowed for black residents to even use Marquette Park, the beachfront and park located in Miller.5
As such, the building represents a time when Miller residents and white visitors could use the cleaner portions of southern Lake Michigan, while blacks lived in Gary's inner city and near heavily polluted waters that fed (cooled) U.S. Steel mills and absorbed its waste.
Although the building fell into disrepair by the 1960s, The Aquatorium Society looked to restore the building in the 1990s. They note, In the last fourteen years the Society has raised and spent over two million dollars on the building. To date, the Society has put a complete new roof on the structure, repaired the entire perimeter of the structure, and completed the East Wing dedicated to the Tuskegee Airmen. The Aquatorium is now available to host banquets, weddings, and small receptions. All profits obtained from rental go back into the cost of maintenance and upkeep of the building.6
Unlike Miller's history that involved strong segregation, the new Aquatorium seeks to celebrate blacks and whites. It's an aviation museum and houses monuments that note the integration of blacks and whites in the U.S. military, notably during WWII.