When a donor or donations have been integral to the establishment of the park or key features in the park (e.g. John D. Rockefeller at Grand Teton NP), it is appropriate to mention the donor in interpretive programs at the park. It is also appropriate to mention donor support where the donation is directly related to what is being interpreted (e.g. meadow restoration at Yosemite Valley, rebuilding the replica of Fort Clatsop).