No, in fact a lot of alleys don't even have a cut and flap that is easily seen like those illustrated at AAM. That thread is about the times that it is visible. Several of the older better alleys do have that trait to look at but a lot or most of the common ones don't. Pretty much any machine made swirl can show the cut and flip. Ravenswoods have it a lot.
The second one looks like it could be a Jabo, the rest are probably Alley. Maybe a chance of Cairo for the 4th.