I, of course, could not resist seeing if the Twice Seven Book Club was on the Internet. I was thrilled to find not only a reference to the club, but a reference to a meeting at my grandmother's house. I had always thought the book club was a response to the Depression, but clearly they were already meeting in 1924.
If you look on the second page of the attached PDF of a page of the Salisbury Post Society News, you will find the snippet about that meeting.
Article in Salisbury Post
