Here are some of the other links about the original song and some of the others:

No Man's Land
No Man's Land (3) (whatever happened to 2?)
Willie McBride - Lyr Add
Not Willie McBride (Parody)
No Man's Land - Lyr Add
Parody of Willie McBride
Green Fields of France - Lyr Add
Parody of Green Fields of France
No Man's Land - Parody