Michael V.
Google
When the Civil War started and the Union took Alexandria many escaped slaves, called Contraband, poured into the city to escape their former masters. This overcrowding caused a high mortality rate. The soldiers seized a undeveloped plot of land and turned it into a cemetery. More than 1,700 Freedmen and Contrabands were buried here, Of course it was forgotten, built on, and many of the graves were destroyed. Rediscovered in 1996 it is now a monunment, From what I understand about 500 graves still exist and many of the markers on the ground had only 'Grave Of An Adult' on it. BUT the lists of names suggest more knowledge of who was buried. Mostly because many of their descendants were found.
Oh, is that crow or a raven?