No southern Republican voted for the 1964 Civil Rights Act

We've been misled. The votes on the 1964 Civil Rights Act weren't split by political party; they were split by geography. There were just more southern Democrats than southern Republicans. Neither in the House nor the Senate did a single southern Republican vote for the bill. Among the few southerners who voted for the bill, they were all Democrats. Among the northerners, Democrats actually voted for the act at a higher rate than the Republicans.

Southern here is defined as a former Confederate state.

House of Representatives:

Southern Democrats: 8–83 (9–91%) – four Representatives from Texas (Jack Brooks, Albert Thomas, J. J. Pickle, and Henry González), two from Tennessee (Richard Fulton and Ross Bass), Claude Pepper of Florida and Charles L. Weltner of Georgia voted in favor

Southern Republicans: 0–11 (0–100%)

Northern Democrats: 145–8 (95–5%)

Northern Republicans: 136–24 (85–15%)
Note that four Representatives voted Present while 13 did not vote.

Senate:

Southern Democrats: 1–20 (5–95%) – only Ralph Yarborough of Texas voted in favor

Southern Republicans: 0–1 (0–100%) – John Tower of Texas, the only Southern Republican at the time, voted against

Northern Democrats: 45–1 (98–2%) – only Robert Byrd of West Virginia voted against

Northern Republicans: 27–5 (84–16%) – Norris Cotton (NH), Barry Goldwater (AZ), Bourke B. Hickenlooper (IA), Edwin L. Mechem (NM), and Milward Simpson (WY) voted against

https://en.m.wikipedia.org/wiki/Civil_Rights_Act_of_1964

 

I wouldn't call Goldwater a Northern Republican

 

The article stated, as related by sanantone, Southern here is defined as a former Confederate state.