My home course, Orchard Hills in Washougal, WA has two greens on the second hole. The stick diagram of the original routing had the hole running to the location of the third tee. I assume they wanted to lengthen the third hole, so they routed the second hole to be a button hook, or fish hook hole. So the new green is built back into the trees making it be played as a two shot hole, whereas originally it would not have been difficult to reach the green from the tee with less than a driver.
There is also a small round green straight away from the two tee, and lying just short of the three fairway. I do not know the origins of this green. When I joined the club it was used as a temporary in the winter as water will drain off of it, whereas the regular green has a significant low spot that water will collect in. I suspect it might have been put in place as a temporary before the new second green area was cleared of trees, shaped, bunkered, and grown in. It also was used as a grass nursery when I joined the club, but since then grounds has developed a much larger nursery out of play on the back nine where more real estate is available. Once the club became paranoid about golfers walking on frozen grass when a frost hits, this green was no longer used as a temporary in the winter, and a temporary hole was cut in the fairway just like on the other holes.