The place that I got them was really wet, so when we pulled/dug them they had plenty of root left. I planted them while the greens were still in good shape. After a few days the leaves died off and a few seed pods developed, pretty soon that was gone too .... the next spring up came the greens, and they had to be from bulb because there were way more than could have come from the few seed pods that we got the first year. The first spring I didn't really harvest them, just 4-5 for one "bait" and the second year looked liked about the same amount that I put down. I harvested pretty heavy that spring and the next had much fewer, and so on till I lost interest and stopped watering. It really looked like what was happening was that the bulbs were just coming back every year and not reproducing, sort of like flower bulbs.

I see that you have a place in Fries. It just might be cool enough there for them to multiply, especially near a creek. I'm pretty sure that the biggest reason they didn't do well here was the climate. I probably could have done better on the soil too but it was just a whim. If you really want to give it a fair shot I'd go back and get a PH reading from the soil where you found them, then try to work your spot as close to that as you can. And to state the obvious, they do best in moist but well drained areas.
Good luck if you decide to do it, nothing like ramps & soft scrambled eggs in butter.