This is a dumb question. There was no first PGA tour golfer. A better question would be who were the first golfers on the first PGA tour.
In 2010 Mike Weir is ranked number one in putts per round, but there are various other stats which reflect who the best putter is. Brad Faxon used to be regarded as the best putter on tour.
Brad Faxon was once regarded as the best putter on tour, but then there was also Loren Roberts who was known as ' The Boss of the Moss'. Nowadays it's probably Phil Mickelson, but Tiger Woods is also a fantastic putter.
Ernie Els is a PGA tour golfer from South Africa who has won many PGA Tour tournaments.