Regarding "The Second Oldest Game Developer", there are also the authors of "Spacewar!": Steve Russell was born in 1937, meaning, he's either 89 or will be 89 this year. Dan Edwards must be around that age, as well.
I am definitely sharing this with Michael he will be happy to be pushed down in the dinosaur ranking!
The two developers mentioned/compared were for the games the op has ported.
Spacewar.com was such a classic game. Why wasn't it an exe??
Spacewar was ported to Plato from Control Data; I played a little, but I played a lottt of Avatar. There are a number of Plato games that probably have some older / early game developers. Out of curiosity I just looked up Avatar, Bruce Maggs coded it in ‘76 and went on to among other things be one of the Akamai founders. But he’s 20 years younger than Russell.