Not all of them, I got them as container plants already. The newest of them was San francisii which I got in 16Nov2014; the Sans patula in April 2014; both plants from my favorite Cactus Jungle nursery in Berkeley, CA.
Sans trifasciata, I think I got this one from Home Depot and it was a much bigger specimen then in 2011, but now much smaller, finally recovered from near death.
This Sans trifasciata, some of them are grown from cuttings, because I really had to chop off the rotted/cold damaged parts.