The Emerald Necklace Conservancy will celebrate 15 years connecting people and parks, and conserving the Emerald Necklace, on Tuesday, May 14, from 6 – 8 in the Kelleher Rose Garden in the Back Bay Fens. The Olmsted Award of Excellence will be presented, and Emerald Necklace Parks Champions John Blackwell (posthumous) of the Arnold Arboretum, Isabella Callanan (posthumous) of the Riverway, Christine Cooper and John Iappini of Jamaica Pond, Sarah Freeman of the Emerald Necklace Parkways, Walter Little and Dan Richardson of Franklin Park, Arlene and Hugh Mattison of Olmsted Park, and Freddie Veikley of the Back Bay Fens will be honored. Individual tickets $50, patron tickets $150. Purchase tickets at www.emeraldnecklace.org, or send a check to the Emerald Necklace Conservancy, 125 The Fenway, Boston, MA 02115. Kindly respond by May 1. For more information contact Jillian Levine at 617-522-2700, or email her at jlevine@emeraldnecklace.org.