The Black Lives Matter protests have also ignited new discussions and demands over the use of Native American images, symbols and mascots.When Stephanie Mach leaves her Center City home, she often passes the Swann Memorial Fountain, with its three bronze Native American figures, in the heart of Logan Square.What many people don’t know — but she does, as a scholar and activist of Diné, or Navajo, descent — is that the square’s namesake, James Logan, was not just a colonial statesman and Philadelphia mayor. He was an architect of the infamous “Walking Purchase,” a scheme in which out of...…The Black Lives Matter protests have also ignited new discussions and demands over the use of Native American images, symbols and mascots.When Stephanie Mach leaves her Center City home, she often passes the Swann Memorial Fountain, with its three bronze Native American figures, in the heart of Logan Square.What many people don’t know — but she does, as a scholar and activist of Diné, or Navajo, descent — is that the square’s namesake, James Logan, was not just a colonial statesman and Philadelphia mayor. He was an architect of the infamous “Walking Purchase,” a scheme in which out of...WW…