Richard Pennycuick:

>In primary (elementary) school, I learnt a piece called "I Vow to Thee,
>My Country" and years later, discovered the theme in the trio of Jupiter.
>I've long forgotten the words but wondered who, if not Holst, was
>responsible for this or, indeed, whether the tune is a Holst original or
>collected perhaps from a shepherd in Devon.

The tune as hymn (with the words "I Vow to Thee, My Country") first
shows up as "Thaxted," in Vaughan Williams's Songs of Praise (1925).  In
Kennedy's Works of Ralph Vaughan Williams, the author strongly implies that
VW adapted it from The Planets.

Steve Schwartz