Originally Posted by: Chris.bolduc
But for the life of me, I can't seem to extract from the music sheet what the strumming pattern should be, even when I hear the instructor demonstrate what the pattern actually is, I can't see it in the music notation.

The strumming is not explicitly indicated in the notation. The best option here is to directly ask the instructor for help! Mike Olekshy did this tune & you can post your question to him here:

https://www.guitartricks.com/forum/forumdisplay.php?f=60

Hope this helps!