[1][2] He has caddied for Ben Crenshaw 39 times including on the two occasions on which he won the tournament.
[1] Jackson was supposed to caddie for Crenshaw in the 2015 Masters, but had to pull out on Thursday morning due to sore ribs.
Jackson's younger brother, Bud, caddied for Crenshaw instead.
Jackson left school at the age of 13[1] to help support his family[2] and as his mother was unable to afford the cost of the uniform at the A. R. Johnson Magnet School which he ended up attending for only one day.
[1] He has recently started the Carl's Kids Foundation to attempt to take golf to children in the inner city of Little Rock, Arkansas.