Sorry - not much luck either. Best I could find on 'Lonesome Polecat' was a commercial site selling songs from '7 Brides for 7 Brothers' including this song ( yes, it's the same song!! ). It's at http://www.activemusician.com/item--WB.TSF0069
Could only find lyrics to "Dont speak of my Heart" -
http://www.lyricsinger.com/G/G/Don't+Speak+of+My+Heart.html
No luck at all on the other one, I'm afraid.
Sorry not to be of more help, hopefully someone else may be able to pitch in.
