Ken has an experimental use of seed at his site, so that may be a reason for a lack of wide-spread dispersal of the "Green 'n Gold" within the larger community.
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I didn't go back further than 1994 in the Yearbooks but it seems Bill Minkey was the first to list it and if CV Lon was Ken's name back then, then I wonder how it got changed from what you know as Green 'n Gold to all the listings in the Yearbooks being Gold 'n Green.
No, I don't stay up nights thinking about this.