Complex sentence: Velma Middleton (born ca.1917, died February 10,1961) was an American jazz vocalist born in Holdenville, OK, best known for having sung with Louis Armstrong's big bands and small groups.
Split into simpler sentences: Velma Middleton (born ca.1917, died February 10,1961) was an American jazz vocalist. Middleton was born in Holdenville, Oklahoma, and is best known for having sung with Louis Armstrong's big bands and small groups.