Theosophical Society
From Tardis Wiki, the free Doctor Who reference
According to Jack Stimson's records, Mathilda was once a member of the Theosophical Society. This fact was just one of what he called the "right credentials" to be a kindred spirit — or, as Jessica Willamy put it, a "one of us" — in the counterculture movement of the 1960s. (PROSE: Wonderland)