To this day , nobody knows exactly when Jack Daniel was born . Daniel 's ` ` uniform '' : formal knee - length coat , shirt , tie , and a wide - brim planter 's hat . Origin of ` ` No . 7 '' : Daniel was assigned a district of assessment number of 7 . He died from complications of complications from an injury to his foot .
To this day , nobody knows exactly when Jack Daniel was born . Daniel 's `` uniform '' : formal knee-length coat , vest , tie , and a wide-brim planter 's hat . Origin of `` No . 7 '' : Daniel was assigned a district tax assessment number of 7 . Daniel died from complications of gangrene from an injury to his foot .