A recent book:
The battle for the black ballot : Smith v. Allwright and the defeat of the Texas all-white primary / Charles L. Zelden
Publisher:Lawrence, Ka. : University Press of Kansas, c2004
Try inter library loan if your library does not have it.
2. From Handbook of Texas Online
<
http://www.tsha.utexas.edu/handbook/online/articles/WW/wdw1.html>
Hope this helps.
Remember that the Democratic Party was the self proclaimed party of the white man. But our party redeemed itself from its pro slavery and pro segregationist past with the passage of the civil rights bills of 1964 and 1965 pushed by LBJ. The Dixiecrats left the party and became Republicans. They began to follow the Southern strategy. The reform party of Lincoln became the reactionary party of racists and segregationists. Lincoln would be a Democrat today if he were alive.