Complex sentence: Born in Little Rock, Arkansas, (according to the Social Security Administration death records, he was born Clifton Nathaniel) Clifton was given the "Sweetwater" nickname as a boy because of his love of soft drinks.
Split into simpler sentences: Born in Little Rock, Arkansas, according to the Social Security Administration death records, he was born Clifton Nathaniel. He was given the "Sweetwater" nickname as a boy because of his love of soft drinks.