Definitely of interest. There are also airchecks of Ethel Waters singing "Eli Eli," not on that compilation. I found this quote:
http://www.thejewishweek.com/arts/music/blacks_and_jews_musical_gray_area
And there's a Black Sabbath exhibition at the Contemporary Jewish Museum in SF.
http://www.thecjm.org/index.php?option=com_ccevents&scope=exbt&task=detail&oid=51
I wonder why they didn't call the album Black Shabbos. It was good enough for these guys:
http://www.people.com/people/archive/article/0,,20120870,00.html