Yea Keef here is the scoop on it....
Unknown or Legendary - Chem Dawg
Aka: Chemdawg
Breeder: Chemdog
Heritage (no serious source known):
Speculation 1: unknown indica strain (Kush, HP or NL?)
Speculation 2: Nepali x Thai
At a Grateful Dead show at Deer Creek Amphitheatre, joebrand (aka wonkanobe) and pbud met chemdog and sold him an ounce of very high quality pot for $500. Joe and Chemdog exchanged numbers and they later arranged for two ounces to be shipped to chemdog on the east coast. According to chemdog, one ounce was seedless and the other had 13 seeds.
In ’91, chemdog popped the first 4 seeds. From these seeds, one male was found and disposed of (chemdog was young, you can’t blame him). The 3 females were labeled "chemdawg" (now '91 chemdawg), "chemdawg a" (now chemdawg's sister), and "chemdawg b". In 2001, chemdog and his girlfriend attempted to germ 3 more seeds, labeled "c", "d", and "e". the "e" seed never germinated, "c" turned out to be junk (according to chemdog), and chemdawg "d" was the keeper. In 2006, chemdog and joebrand reunited and joe was given 4 of the last 6 beans: Chemdawg phenos 1-4, "4" being the chosen keeper. Joe thought the "4" was the best representation of the original and thus dubbed it the "reunion pheno". Chemdog still has two seeds left in his stash.