Who won the black vote in 52/56?

[○∙◄☻¥tπ[╪AV┼cVê└]

The Democrats have won them every election going back to 1936. Obviously Eisenhower did much better than McCain with them, but he still lost them.

[○∙◄☻¥tπ[╪AV┼cVê└]

Basically

Blacks voted Republican until 1936.
From 1936-1960, they vote Democratic by decent margins.
From 1964 onwards, they vote Democratic by extreme landslides.

[○∙◄☻¥tπ[╪AV┼cVê└]

Here's 1956.

Black areas in the south (like northeastern NC, western AL and the MS/AR delta regions) are still pretty Democratic.

Blacks weren't voting in the South.

Good point.

Was it actually zero, or just really low?

[○∙◄☻¥tπ[╪AV┼cVê└]

The amount of black voters in the south was not exactly zero, however most black people who could vote in the south did so because they were either literate and had enough money to pay
the poll taxes, or were reliable votes for the local party machines candidates like in the example memphis pointed out above.

Kind of like Hitler having a small number of people of known Jewish ancestry in some top positions like Erhard Milch.