For Sara Lee, I tracked down this first:
That gave me her full name. So then I just search for images:
And there she was, second row.
Marie Callender was easier.
Bam. Right there on the page.
Mrs. Smith's website didn't have a photo of their namesake, but I got her first name:
Then I just googled that name, and voilá, the piemaker herself.
Well, okay. I'm not sure WHICH Amanda Smith was the ACTUAL "Mrs. Smith," but I hazarded a guess.*
* "chose the cutest"