The first one appears to be a version of Drunkard's Path
The second one...I forget the name, but H blocks? I've got the pattern somewhere myself and hope to make that one .
The last one is Pinwheels & Hourglass blocks.
All are scrappy versions.....what a treasure you have from your grandma! Are you planning on finishing them with top quilting, etc.?
Blessings,
MaryAnna