You've done a really good with this, certainly much better than all of the lyrics websites, which essentially copy and paste one another's mistakes. (For example, all of them have it transcribed as "fault her" instead of "falter").

Here's where my ears have picked up a few things different than yours:

1. "soft secrets" (vs. "soul secrets")
2. first chorus, first line: "Though..." (didn't hear the "and"... minor point), followed by    "Lo..." in the second line.
3. first chorus: "will forever be made whole" (vs. "will some day...")
4. "Oh my darling Marianne" (vs. "Though my darling Marianne")
5. second chorus, second line: "Lo..." (as above)
6. "take heed" (as you suggested)
7. "I will never travel" (minor point: didn't hear "and" lead-in)
8. "Oh Virginia, whence I came" (vs. "once I came")
9. final chorus: possibly both first and second lines begin with "Lo" (hard to tell)