I recently discovered I have a Charles Mordecai in my family line.
Eugenia Mordecai married Edward Yeizer. They were my great, great grandparents. Eugenia was the daughter of Harry and Rachel. I found the following in the National Genealogical Society Quarterly, Vol. 63, Frankfort, Kentucky, Census of Free Blacks, 1842, Page 274:
"Mordecai, Harry, 57, plasterer, etc. $3,000, character well known to be good. Rachel Mordecai, 45, wife. James Mordecai, 19, child. CHARLES MORDECAI, 16, child. Sevelia Mordecai, 12, child. Eugenia Mordecai, 11, child. Julia Mordecai, 11, gr.d., Kitty Mordecai, 9 child. Invenor Jones, 16, bound."
Somehow this family is tied to the other Mordicae's Isaac and Rebekah, whose names appeared above Eugenia Mordecai in my grandmother's Book of Common Prayer. I haven't found the relationship, though.
Anyone who might possibly have a connection - please contact me.