Some of the trees on your list are not going to grow much taller -
hawthornes and dogwoods top out at around 20 feet or so, usually - and the
top part of their canopies are thin, light branches, so should not pose a
real threat to wires that are, say, at 18 feet above the ground or so.
However, some of your other trees will get bigger than that - any kind of a
tree that can form a heavy limb above the wires should be cut down rather
than topped. Cedar of Lebanon is a massive tree, although it is usually
broad rather than tall. A Lebanon cedar tree of any size should be quite
valuable, since they are usually quite slow growing. (Apparently yours is an
exception). It's possible that you could get a landscaper in your area to
buy it and remove it for some large property that has the space for such a
majestic tree.