Hi again,
I think no. 2 could be a variety of Mahonia, judging by the shape of its leaves and the little clusters of yellow flowers. Is it evergreen?
Ann
Michael,
I've just discovered that "mahonia aquifolia" is also known as "holly-leaved barberry", though its flowers look more a deep yellow than orange. It belongs to the berberis family, and thorns were mentioned. It also produces clumps of small berries like little purple grapes with a whitish bloom on the skin. Does this tick any boxes?
Ann