How lovely! Some of my own magickal lineage (though it is highly eclectic) traces directly back to Mathers as well. After the Golden Dawn disbanded Mathers founded the Order of the Alpha et Omega (AO) who, besides the great Dion Fortune, also had the distinction of being the order to initiate Paul Foster Case shortly after the death of Mathers. He went on to found the Builders of the Adytum (BOTA) after a rift between him and Moira Mathers caused his expulsion from the AO in a situation eerily reminiscent of the Crowley/GD debacle. Shortly after the strange "death" (there are questions as to whether he indeed died or "kabbalistically ascended") of Case, a man named Dr. Paul Clark rose through the ranks of the BOTA until, in another similar scenario, he left them to found the Fraternitas Lux Occulta (FLO) which is a very active and wonderful group today. I have never joined any order beyond 0 degrees but if I was going to join one it would be the FLO. Dr. Clark is one of the most enlightened individuals it has been my pleasure to meet and after a lifetime of esoteric study and being in occult circles that is saying quite a bit.