Early R & B albums with photos of white people to boost sales?

I would like to know, and be reminded of, some examples of early rhythm and blues record albums that were released with photos of white people on cover to ensure better sales figures. I remember seeing a documentary on TV that mentioned this practice early in the history of the developing genre, as it evolved into rock and roll, but I would like to know specific artists, groups and or record companies that practiced this strategy. This practice was also prevalent in the early history of recorded music that included Jazz recordings. I am aware that white musicians recorded "black" music all the time and became famous for it, above and beyond the originators, but, I recall there were actual black groups who were advised to release their albums with young white people on the covers. This is an unfortunate part of the continuing struggle of all blacks, not only African Americans, to achieve full recognition for their enormous contributions to humanity.  Any further insight, with specific examples, will be greatly appreciated.  Thank you very much, in advance, --GG