"O Little Town of Bethlehem" is a popular Christmas carol. The text was written by Phillips Brooks (1835–1893) Organist, Lewis Redner, added the music. Redner's tune, simply titled "St. Louis", is the tune used most often for this carol in the United States.
In the United Kingdom, and sometimes in the U.S. (especially in the Episcopal Church), the hymn tune "Forest Green" is used instead. "Forest Green" was adapted by Ralph Vaughan Williams from an English folk ballad called "The Ploughboy's Dream" which he had collected from a Mr. Garman of Forest Green, Gloucestershire in 1903. Adapted into a hymn tune, it was first published in the English Hymnal of 1906.
This free PDF can be downloaded, printed, and played for free and includes suggested fingerings and bowings. More free sheet music available on Fiddlerman.com
This and many other X-mas tunes can be found here.