Yes Sir Bo,
Sorry you lost your Pine Molly.
From what I have read, pine can be made into a bow.
But you have to go Very Long, Very Wide, and Very Light in draw weight.
If you are board bow building I would recommend an Oak board.
Or Hickory/Pecan if you have access to it.
I've also read that the Molly design is a tougher to tiller owing to the flat uniform cross section of the bending sections of your limbs.
Have you considered a longbow or flatbow design?
-gus