The good people at Winds of Valor had a Civil War Preservation Trust official in to speak to them about preservation in December.
To get the full flavor of how evasive and unfocused CWPT is, read the whole transcript. Look for a fact, such as a specific accomplishment. Or a specific threat. Aside from pseudo-specificity like "CWPT has helped protect more than 19,000 acres in 19 states, " there is absolutely nothing in the entire give and take you could hang your hat on.
When the question of CWPT's funding comes up (twice), each time CWPT's spokesman answers as if the question was about federal funding.
Read this before you donate.