"Wasn't That a Mighty Storm" is an American folk song concerning the 1900 hurricane that destroyed Galveston, Texas. It was revived and popularized by Eric Von Schmidt and Tom Rush in the 1960s, and later by the bluegrass musician Tony Rice. The song was first recorded in 1934 by a preacher named "Sin-Killer" Griffin for the Library of Congress, in a session conducted by folk song collector John A. Lomax at Darrington State Farm, a prison near Sandy Point, Texas. The prison inmates served as Griffin's congregation, and Griffin claimed authorship of the song. This is the first known appearance of the song. The famous 1900 Galveston hurricane, was, as of 2014, the deadliest natural disaster in United States history and caused an estimated 6,000 to 12,000 fatalities. Eric Von Schmidt found "Mighty Storm" in the Library of Congress collection and with his friend Rolf Cahn put together a folk arrangement with chords and a bluesy melody. Von Schmidt handed it off to Tom Rush, who recorded it on his album Take A Little Walk With Me (1966). The Chad Mitchell Trio recorded a version of the song under the title "A Mighty Day". It appeared in their 1961 album Mighty Day on Campus. Tony Rice recorded it on Tony Rice Plays and Sings Bluegrass in 1993.