I read an interesting article on the “first” ordained African-American female rabbi here.  I was pleasantly surprised to find a bit about biracials in there….

Alysa Stanton, now 45, recently passed another milestone on her spiritual journey. On June 6 in Cincinnati’s historic Plum Street Temple, she was ordained by Hebrew Union College, the Reform rabbinical school, making her the movement’s first African-American rabbi and the first African-American woman ordained by a mainstream Jewish denomination.

…She converted in 1987. Her mother and siblings quickly accepted her decision, although, she says, “none are running to the mikvah.” But many of her friends and fellow Jews were suspicious. “It was unusual in that I wasn’t converting because of marriage but because of spiritual reasons,” says Stanton. “My Christian friends thought I’d grown horns and some of my African-American friends thought I had sold out. And the Jewish community wasn’t as welcoming as it is today, either. It was a very difficult period.”

…Stanton may be a new face in the mainstream rabbinate, but black rabbis have a long history in America. To Gordon, the very notion of a “black rabbi” is a nebulous modern distinction, particularly as a deeper understanding of genetics displaces earlier conceptions of race. There are Jews of all stripes, he says, “who are publicly known as white people but who in older times would have been known as ‘mulattoes’ or in some cases, given today’s term, ‘biracial.’” Thus, there may “already have been some technically African-American Jewish rabbis.”