Hi! I might have some info on Mr Cottrell. I'm not sure if this is the same person or not, but I'm pretty sure it is.
His full name is Charles Cottrell. He lived in Cedar Rapids, Iowa until his death about 8 or 9 years ago.
He did alot of cart & harness making. Most of his models were flocked by Ruth Diercks & the he attached them to the wagons.
I knew him personally & he was a very nice person. I didn't meet him until he was quite elderly, just a few years before he passed away. He sure loved his work tho!
Lisa (Orton) Gorbatjuk
D's Seminole Wind and D's Dr. Doolittle, customized by owner DeeAnn Kjelshus; wagon and harness made by Cottrell