Is it possible for 2 inch bass stocked the 1st of July to be 8 - 9" right now?

The family was feeding the coppernose this evening as usual when my wife spotted a fish that was double the size of the coppernose stocked in December 2002. I was finally able to see it, and it has to be a bass. The only other thing stocked in the 1.5 acre pond was 750 fathead minnows and redears. Minnows are hardly seen anymore at all. I stocked 50 NLMB and 50 FLMB around the 1st of July.

So is it possible? I am doubting it, but I saw not one but two of them. They came up and swam among the bluegill and my kids were throwing in grasshoppers and crickets that they caught in the grass and these 2 fish were moving back and forth just behind the first line of coppernose that sit and wait for the treat. I'm not sure what to make of them, I just don't see how they could be that big already.

I live at the pond so no one has contributed anything to it without my knowledge. I'm in disbelief that they could be that large already.

John