In article ,
richard schumacher wrote:
(He says that of the many suggestions for names, the three that were clear
favorites among astronomers in general and at Lowell in particular were
Minerva, Cronus, and Pluto. Minerva would probably have won, had it not
been recently given to an asteroid. Cronus would have been considered
seriously, had it not been initially proposed by "a certain detested
egocentric astronomer".

Anyone know who that was? Lowell himself?

I don't know, but my guess would be TJJ See.