My folks have an old vinyl...Andre Kostelanetz, World’s Greatest Waltzes. WM is one of the selections. It’s so moving and beautiful! Found it on youtube at the 2 minute mark in a medley with “Now Is The Hour.”
https://www.youtube.com/watch?v=VWNC3vZG2a8
Next best imo, Jimmie Rodgers’ version:
https://www.youtube.com/watch?v=U1fQvPFR_1M
Interestingly, “Waltzing Matilda” is not a waltz.