IIRC 'Honest John' is a fictional company. 'John the OFM' (over on TMP) made it up to market unlikely* figure lines.
I could be wrong on this, but I seem to recall several people searching for 'Honest John' over the years to no avail.
* This seems to be a very individual take on what is unmarketable, as several companies do ranges of rednecks and hillbillies (Blue Moon, Inkermann, Westwind, Copplestone)