The Caron-Net website has illustrated instructions for making God's Eyes.
Ancestor Hunt is a free website for searching ancestry. The Mormon church also offers help with genealogy research.
A UU World article about the Unitarian Universalist Association's efforts at truth and reconciliation regarding our own history also contains a link to a radio interview with David Pettee.
Read a sermon by David Pettee about searching for his slave-holding ancestors, in the Unitarian Universalist Church of the Larger Fellowship publication, Quest.