I found this information at http://www.lyricsdepot.com/guy-mitchell/roving-kind.html
(allmusic confirms authorship.)

THE ROVING KIND
[Recorded by] Guy Mitchell
Written by Jesse Cavanaugh and Arnold Stanton

Peaked at # 4 in 1951
Competing versions by The Weavers hit # 11 and by Rex Allen hit #20.
Adapted from the old 1800s English folk song "The Pirate Ship."

Sorry, I can't do chords, but there are sound samples at allmusic—see link above. Maybe someone can listen to them and work out the chords for you.