It sits on my neighbors fence and the old homeowner called it a type of Japanese maple this that correct? The first 2 images are close ups.

Only recently did I notice that it bore seeds, which I now have put into pots and am trying to grow. Previously I trying taking cuttings of it and using root hormone to no avail.

Also, a few weeks ago I noted that roughly 40 feet away, a new plant started to grow in the partial shade of an evergreen bush that we have. its only 8 inches tall or so and sits up against a brick wall. I assume its a new baby of hte same tree type that I am trying to identify. Thoughts?

Now, if it IS indeed the same plant, could you please explain how I can remove the new baby tree and either get it into a pot OR plant in elsewhere as I would really like to grow this tree.

Thanks for the knowledge in advance.
http://www.nycaviation.com/hosting/baby2.jpg

This is the second year that I've collected Japanese maple seedlings, and this is how I do it: during a cooler time of day (early morning or evening), I dig the seedlings up. I use a mix of pine/fir bark and perlite in a 3/4 gallon nursery container. Once I dig the seedling up, I plop the root-ball into the container (with some moist bark/perlite on the bottom), and fill around the root-ball with the bark/perlite mix. I water well. Then I keep the seedlings in a shady, cool location - protected from winds, but with good circulation - for at least a week. You can gradually move them into filtered / dappled / partial sun afterward, but watch the new growth for drying or scorching.

Josh