Oxford, Swedenborg, and Bill W.
I knew that AA-founder Bill Wilson had been influenced by the New Church through his wife Lois Burnham. What I had not heard before was a specific explanation of the Twelve Steps as an expansion of a Swedenborgian "six-step ritual of spiritual and mutual" from something called "the Oxford movement":
Bill had stayed away from alcohol until the age of 22 because of his family history of drinking problems. Having already suffered from episodes of depression, he took his first drink at 22 and experienced a glow of self-confidence and escape from dysphoria. This was followed by his descent into alcoholism and many failed attempts at detoxifications to curb his compulsive drinking. On June 10, 1935, the date affixed to the beginning of AA, Bill had been traveling on business in Akron, Ohio, and struggling to control his urge to drink. He sat down with another alcoholic, a physician, so that both could stave off their craving for alcohol, which they succeeded in doing. He later drew on his experience with the Oxford movement, which was premised on the Swedenborgian conception of steps leading to salvation, and expanded on their six-step ritual of spiritual and mutual support into the AA creed.
This tidbit (which should be followed up on) is from Marc Galanter's "My Name Is Bill: Bill Wilson—His Life and the Creation of Alcoholics Anonymous", a review of a 2004 book with the same title, published in the May 2005 The American Journal of Psychiatry.