My inspiration photo was from Cooking Up Quilts. It looks like the one on the top left corner, pattern back, OurWorkbench found (thank you). I read on one of your links above that on her notes she wrote the sizes of sqs. I cut mine smaller but used more in a row because I didn't know. My big centers were 6.5 inch sqs with three 2.5in sqs underneath. The color rows were 4.5 x 6.5 with just two 2.5 in under. You also have a 4.5 inch square, on top or bottom, of every row except center is 4.5 x 6.5 Look at picture for placement. My top came out 59 x 83, because my goal was 60 x 80, so I was close.
Thanks for providing the name Magic Carpet, OurWorkbench. I had saved my picture I found and tried to go to Cooking Up Quilts, but couldn't get to site. If I had known the name, I maybe could have found it. Oh well, it's made and I am naming my quilt top Tank Tracks, for our veteran.