The Prince Hall Memorial will not bear its namesake’s image when it is erected on Cambridge Common this November. No pictures of the indentured servant-turned-abolitionist can be found, nor much description on which to base an artist’s depiction.

And while Prince Hall’s contributions to American history and the antislavery movement are familiar to historians and members of the Masonic lodge he created, he is not a well-known figure.

Read more: The Boston Globe