Sorry for another quick post, but I'm still hung up on the moon trees idea. Unlike trees in the forest, these would be protected, and not likely to be in a wildfire, cut down, etc.
There are second-generation moon trees (half-moon trees) that were planted from seeds or cuttings from original moon trees. Here are the public locations that I've found, if it would help anyone:
Marshall Space Flight Center, Huntsville, AL (sycamore)
Ultra Powers Co, Blue Lake, CA (redwood)
MSAS Astronomy Village, Lake Arrowhead, CA (sycamore)
Museum of Science & Industry, Tampa, Fl (sycamore)
National Interagency Fire Center, Boise, ID (sycamore)(planted spring, 2002)
Alder Park School, Libertyville, Il (sycamore)
Greenbriar Elem School, Indianapolis, IN (sycamore)
Living Heritage Tree Museum, Storm Lake, IA (sycamore)
Louisville Zoo, Louisville, KY (sycamore)
Historic Tree Museum, Unionville, MO (sycamore)
Lasdon Park & Arboretum, Somer, NY (sycamore)
Guilford College, Greensboro, NC (sycamore)
Sloan Park, Rowan County, NC (sycamore)
Arlington National Cemetary, Arlington, VA (sycamore) (just planted Feb 2005)
Zuse