I tried to grow "Texas Sweet" onions from Burpee but I planted too late (coastal South Carolina). I have pulled the bulbs up and now have a fair number between .25 in and 1 in diameter, most without vegetation. Can I use these as "onion sets" and plant them around 1 Nov?
Yes, you can. As long as they are firm, they can be planted later. Store them in a paper bag in a cool, dry place and they should be fine to plant later.