I second Chanteyranger's recommendation of 'Four Women Blues'. There is also another CD reissue of Bluebirds, but I don't know if it's still available: 'Better Boot That Thing: Great Women Blues Singers of the 1920's' RCA Heritage Series 07863 66065 2. It features sides from Alberta Hunter, Bessie Tucker, Victoria Spivey and Ida May Mack. There is also a couple in the Yazoo 2000 series: Various Artists 'I Can't Be Satisfied: Early American Women Blues Singers - Town and Country Vols 1 & 2 Yazoo CD 2026 and 2027. These cover a wide range of early women blues singers from the wellknown to the relatively obscure.

--Stewie