“Which Side Are You On?” is one of the most popular union
songs. According to Alan Lomax, who collected folk songs for the
Archive of American Folk Songs at the Library of Congress, this song was
written by Florence Reece, th
e 12-year-old daughter of a
miner who was on strike in Harlan County, Kentucky. Lomax wrote
that she sang it to him in front of the family hearth of a log
cabin in 1937. This version
is sung by Pete Seege
r, one of the most popular folk
singers of the 20th century. This is a version
with allusions to contemporary corporations and
politicians.