To the tune of Baptist hymn Lay The Lily Low and British ballad Jack Munro. She wrote and performed it during mine strikes in Bell & Harlan County, KY (1919 and 1931). Never spoke at rallies without singing her song first: "I am a union woman and brave as I can be, I do not like the bosses and the bosses don't like me". Tough cookie. Alan Lomax recording.
Almanac Singers [as Which Side Are You On, another union song based on the same melody and written by Florence Reece, wife of a union man and seriously challenged by vigilante men during that same strike in Kentucky in 1931, verbally taking a stand with the words of her song]
John Greenway [standing in for Aunt Molly on a Smithsonian session, one week after she died]
Weavers [as Which Side Are You On]
Florence Reece [at the age of 75]
New Lost City Ramblers [as Join The C.I.O.]
Billy Bragg [as Which Side Are You On in the context of the British mine strikes]
Dick Gaughan [idem]
Pete Seeger with Jane Sapp & Si Kahn [in medley with Which Side Are You On]
Natalie Merchant [as Which Side Are You On]
Ani DiFranco [idem on eponymous album, with Pete Seeger]
Elvis Costello & Joan Baez [idem]
Aunt Mollie claimed to be the inspiration for Al Dexter's hit Pistol Packin' Mama (see there), when she and her sister (see: Come All You Coal Miners) had robbed a vigilante man's gun, pointed it right at his private parts, forcing him to flee a picket line.