Searching for SIMON. On September 22, 2007 I adopted a border collie mix named Arthur (his name is now George). I recently found that he had a brother listed as a labrador mix (because he was black) This was an adoptathon weekend. Simons ID number was 17640 with a microchip number of 494b435a7d. I would love to located him. According to the DNA test he is acutally part boxer and part border collie or springer spaniel. If you or a friend have a dog matching this description please contanct me. We just want to arrange a play date.