Rock historian Ed Ward considers the influence of early Mexican American rock bands. Sam the Sham and the Pharaohs were a goofy novelty act; the Question Marks incorporated the sounds of traditional Mexican music into their songs.
Don Glen Vilet is a painter who recorded experimental, blues-inflected music under under the name Captain Beefheart. Rock historian Ed Ward says that, while Beefheart was never a commercial success, his influence can be heard in everything from pop to heavy metal.
Rufus Thomas was a Memphis-based disc jockey who helped promote black music throughout the south. He also became a recording artist and producer who wrote dozens of dance hits. Rock historian Ed Ward has this profile.