This one isn't passing the smell test. I know that the early parks were either carved out of federal lands, or donated by the states and private benefactors, but despite the law to the contrary, FDR spent over $2 million toward the purchase of the Great Smoky Mountains National Park, starting with over $1.5 million in 1933. That should pre-date the Mass purchases.
Here's a source on the Tennessee spending. http://tennesseeencyclopedia.net/imagegallery.php?EntryID=G041
Tell the truth . . . you have a team of trivia geeks working with you. 8)