La Visite National Park and Pic Macaya National Park were the first two national parks to be established in Haiti, both in 1983. They were created largely through the efforts of Charles A. Woods and colleagues. Grande Colline National Park was established on July 23, 2014, and Grand Bois National Park and Deux Mamelles National Park were established on September 23, 2015. Those three recent parks were created largely through the efforts of S. Blair Hedges and Philippe Bayard.
Current list of Haiti's national parks, not including marine parks and management areas in Haiti:
References
List of national parks of Haiti Wikipedia(Text) CC BY-SA