I'll try to answer your questions concerning the tress.
First, there are no "memorial trees" on the Quad. There are many old trees, that have been there for many years, but there are no "memorial trees" on the Quad.
Second, the Quad is undergoing a major renovation over the next 2 years, and part of that renovation will include re-doing the interior of the quad. In addition to the renovations, the university is emplacing new pipes down the center of the Quad to bring hot/cold water and fiber to the dorms on the Quad. These pipes will replace pipes that are over 70 years old and routinely break now. Once all the new pipes are in place, the old steam tunnels are going to be collapsed and filled in.
Prior to all of the renovations being started, the university Arborist was brought in to determine which trees would survive the work being done to the interior of the Quad, and which ones wouldn't. It was HE who determined which trees were either already dead (and many were) or would not survive the work being done in the interior of the Quad. As a result, those trees deemed already dead or unlikely to survive the renovations are going to be cut down. Some have already been cut down, and there are more to follow.
What may not be known, however, is that new trees will be planted to replace those that are cut down. For every tree cut down, at least one, if not more, trees will be planted to replace it. So when the renovations are complete, there will be a row of new trees - and some old trees that survive - down the center of the Quad. After all is said and done, the Quad will have MORE trees in the interior than we had before.
By the start of the 2017-2018 school year, the entire Quad should be completely renovated, including all 12 dorms completely renovated, 4 Leadership Learning Centers built (2 already exist - Buzbee and Ash), and the interior of the Quad completely re-done, including new paving similar to what you now see at Military Walk, as well as new benches, new lighting, new landscaping, and yes, new trees.
I hope this helps answer your questions. If you have further concerns, please feel free to call the Office of the Commandant and I'll be happy to discuss with you. Thanks for your support of our Corps.