Roger K. Newman’s book contains what other Justices thought of Hugo Black’s style:
“He essayed an almost exclusively legislative history. This befitted his background, but did not tell anywhere near the whole story. A constitutional amendment, not a statue, was being enacted.
But Black neglected the ratification process in the states, and when legislators vote on a proposal they cannot escape the enveloping atmosphere.
Black also ignored that, as well as the Amendment’s historical antecedents …
Black’s was an advocate’s history: he proved too much and ignored or swept away all doubtful evidence. Try as he did, he could not get advocacy out of him …
‘Hugo is trying to change the world and misreading history in the attempt, just making things up out of whole cloth,’ Justice Frankfurter told his clerk …
Black’s history was open to valid criticism …
Privately, Frankfurter ‘referred to Black in very personal terms,’ recalled television reporter Martin Agronsky … ‘(but) Black’s Klan connection was always in the back of his mind. He didn’t trust Black’ …
Justice Stanley Reed made a similar point in his kind way. ‘Black will put something in this opinion that he plans to pull out five opinions down the road,” he told a clerk, ‘so you better be very careful about the future implications of what you see in the things that he circulates.’
Much of the same thing came from Justice Bill Douglas … ‘You have to watch Hugo. He’s tricky.'”