Sam Moore, the surviving half and higher voice of the 1960s duo Sam & Dave that was known for such definitive hits of the era as “Soul Man” and “Hold On, I’m Comin,’” has died. He was 89.

Sam Moore, who was one half of the 1960s duo Sam & Dave and best known for his hit "Soul Man," has died. He was 89.

Mr. Moore and Dave Prater stormed the R&B and pop charts with indelible hits like “Soul Man” and “Hold On, I’m Comin’.”