It comes as the Secretary of the Interior filed a motion in court on Wednesday afternoon against a lawsuit filed by the City of Philadelphia.
READ MORE | Philadelphia to hold public hearing after removal of slavery exhibits
That lawsuit alleges that the federal government didn't have the authority to remove panels from the President's House. In a court filing by the Department of the Interior, officials opposed Philadelphia's lawsuit, saying the city has not substantiated its claim that removal of the panels will cause "irreparable harm."
Members of the Avenging the Ancestors Coalition marched to the site on Wednesday, where the outlines of the torndown exhibits remain visible on the walls. The group also launched a 30-day campaign titled "Tell the Truth. Restore our History."
For many visitors, the memorial that once stood at the site had long been a powerful reminder of the nine enslaved people held there by President George Washington.
"This has always been one of my favorite historic sites. Very moving. Very truthful," said one visitor, who added that the feeling is much different now that the stories have been removed. "My heart is breaking."
SEE ALSO | Philadelphia sues over removal of memorial honoring people enslaved by George Washington
Philly sues over removal of slavery exhibits at President's House
The coalition gathered to protest the removal of the displays, which were taken down last week under a directive from the Trump administration to eliminate exhibits deemed "disparaging" to American history.
Michael Coard, of the Avenging the Ancestors Coalition, said, "There's only one place in Philadelphia where Black folks were held on federal property: 6th and Market (site of President George Washington's former home)."
Coard, who helped push for the memorial's creation, noted that the coalition worked with the city and the administration of President George W. Bush to establish the site, which opened in 2010.
READ MORE | Slavery exhibits at President's House in Philadelphia removed after Trump administration directive
Some demonstrators condemned the removal.
"Tearing down those signs was a disgrace," said Barbara Patrizzi of Cherry Hill, New Jersey.
Kevin Taylor, also of Cherry Hill, said, "The fact that African Americans have been a part of this city and this nation since day one."
The coalition plans to join the city's lawsuit and intends to seek additional legal action.
"We are supporting and pushing a preliminary injunction," Coard said. "The foundation of a preliminary injunction is that the victims will suffer irreparable harm. The removal of the interpretative panels at 6th and Market is irreparable harm."
Freddie Brown of West Philadelphia urged the crowd to continue pressing forward.
"Stand up. We the people. We're not taking no more. Not taking no more," he said.
Demonstrators said their efforts are aimed at both restoring and protecting the President's House site.
"It's important that our kids are able to see that we stood up and that we fought against this. Because this is what they are going to read in history one day as well," said Alyssa Bigbee of West Philadelphia.
As far as the locations being held in storage at the National Constitution Center, the court filing states, "They will remain in storage at this location pending the outcome of this lawsuit."
The Department of the Interior also sent a statement to Action News that reads in part, "Claims that parks are erasing history or removing signs wholesale are inaccurate."
The city's lawsuit is scheduled to go to court on Friday.