Simplify the following text for a Grade 5 native English-speaking person.
Original: Eddie James `` Son '' House , Jr. ( March 21 , 1902 â `` October 19 , 1988 ) was an American blues singer and guitarist .
Simplified: Eddie James `` Son '' House , Jr. ( March 21 , 1902 ( ? ) â `` October 19 , 1988 ) was an American blues singer and guitarist .