Descriptive InformationPlaque -"In memoryof the black Americans who Fought Here For Freedom, From Human Slavery June 1976 Erected by the Association for the. File. Original caption: NHF-3663 Plaque "Memory of the Blacks". Number: NHF-3663. Subject or Title: Plaque - "In Memory of the Black". Negative on File X Yes _ No. Location of Pix: Comments: Americans/ Who fought Here/ For Freedom/ From Human Slavery. - June 1976.