From Wikipedia (with edits by me)
Arthel Lane "Doc"
Watson (March 3, 1923 – May 29, 2012) was a guitarist, songwriter, and singer
of bluegrass, folk, country, blues, and gospel music. Watson won seven Grammy
awards as well as a Grammy Lifetime Achievement Award.
His fingerstyle and flatpicking
skills, as well as his knowledge of traditional American music, were highly
regarded.
Blind from a young age, he
performed publicly both in a dance band and solo, as well as for over 15 years
with his son, guitarist Merle Watson, until Merle's death in 1985 in an
accident on the family farm.