The burgundy patch says Denton High School 1963 around some sort of tree (apple?)
The yoke has a western style in front, but goes straight across in back. You could easily fake this with two parallel lines of stitching or even a light brown fabric pen. He has two double welt pockets in the front, and just a short piece of rib knitting on the lower sides (hem). The rib-knit is a darker khaki/brown than the jacket. This could easily be inserted into any straight-hem style jacket, and when making this jacket I actually add it last.
The cuffs are the same twill fabric as the jacket, and are unbuttoned. I can't actually see the button, but Jenny assures me they are a light tortoise-shell (like what you typically find on mens khaki pants).
I've had decent look finding workable vintage 70s jacket patterns on eBay. You probably won't find the yoke or rib-knit feature, but you can find a straight-cut mens jacket with those butterfuly collars easily enough.