Tunesmith.
Where have all the Flowers gone is a reference to an earlier post, nothing to do with Woody Guthrie.
"My Land" is a great song, Wiki gives the English version as

This land is your land, this land is my land,
From the coast of Cornwall to the Scottish Highlands,
From the sacred forests to the holy islands.
This land was made for you and me.

or the Welsh version as
Mae'n wlad i mi ac mae'n wlad i tithau,
O gopa'r Wyddfa i lawr i'w thraethau,
O'r De i'r Gogledd, o Fôn i Fynwy.
Mae'r wlad hon yn eiddo i ti a mi

there's an excellent article in Wiki - Nothing wrong in singing a good song with alternative lyrics. As someone else said, Woody would have loved it.