Who owned the record company during which time Ritchie Valens sung the song most notably covered by Los Lobos?
Del-Fi Records: Del-Fi Records was an American record label based in Hollywood, California and owned by Bob Keane. Del-Fi Records:  His next single, "Donna"/"La Bamba", was an even bigger big hit, and brought notability to the label. La Bamba (song): "La Bamba" has been covered by numerous artists, most notably by Los Lobos, whose version was the title track of the 1987 film "La Bamba" and reached No. 1 in the U.S. and UK singles charts in the same year.
Bob Keane