I don't know about the other trees, but the Chambers Black Heart Cherry is probably a descendant and not the original tree planted by David Chambers. There is a good video about the tree on the Panorama campus, but unfortunately, I can't seem to add the link here.
This is the URL: https://pctv.panorama.org/CablecastPublicSite/show/5006?site=1
Please explain the inappropriate content below.