Challenge: Vintage Mysteries 2013

My Reader's Block is hosting the Vintage Mystery 2013 Challenge which I have decided to take on. Basically the challenge is to read 8 vintage mysteries (defined as written before 1960) during 2013 which fit into a set of categories (one book per category) defined on the challenge page.

I am little concerned about being able to actually get my hands on copies of the books to meet this challenge, but I am excited about reading more vintage mysteries. Some of the titles I am considering at this point are Why Shoot a Butler? by Georgette Heyer, The Black Dudley Murder by Margery Allingham (a locked room mystery from 1929), and Nine Wrong Answers by John Dickson Carr. There were a lot of vintage mystery authors discussed in the Alfred Hitchcock bio I just finished which I may want to read as well: British author Edgar Wallace known as "king of the thriller" (p. 124); Edwin Greenwood, author of various mysteries including The Deadly Dowager and Miracle in the Drawing Room (p.160); The Wheel Spins (1936) by Ethel Lina White upon which The Lady Vanishes was based (p. 206); Francis Iles' Before the Fact (1932, p. 267) or Malice Aforethought (1931, p. 278). Books by Dorthy Sayers, Ngaio Marsh, Erle Stanley Gardner, and Agatha Christie are also strong possibilities.

Crime Read Along: The Queens of Crime

Here is the Introductory discussion for reading Josephine Tey's The Man in the Queue.I have read Tey before, including this novel, and like her work. I am currently re-reading this novel for the Read Along.
Tey is one of the writers from the Golden Age of Mystery which includes the Queens of Crime: Agatha Christie, Dorthy Sayers, Ngaio Marsh, and Margery Allingham. Marsh and Allingham are both new to me.
I was in NYC this past week and picked up a copy of Allingham's 2nd book at Partners & Crime. I got the 2nd one at the recommendation of the shopkeeper who said that is where the series really gets going. I'm looking forward to discovering these new (to me) writers.