I must be going nuts - I thought I posted the comment I'm about to make already (but perhaps I didn't Submit it) - anyways, I'll say it (again):
I didn't see footage of PP&M until relatively recently, and I must say, Mary mesmerized me!
So much commitment and SOUL and passion.
She would've gone great in other music Genres like Motown - seriously.
I think of PP&M (at times) as the first "Soul/Folk" Act.
RIP.