Thanks for the lead. I looked further into this and learned that the fellow's name was actually William Montgomery *Brown.* Judging from the Web archive of a prominent British atheist -- Joseph McCabe (1867 - 1955), a onetime Franciscan monk -- who appears to have been Brown's mentor, the Bishop was well-meaning, rich and not too bright. Here's what McCabe had to say about him:
Brown called for my help when his brother-bishops of the Episcopal church threatened to disrobe him in 1924 as, he explained, it was chiefly reading my works in his retirement that made him a skeptic. From that date I wrote all the learned works which he put out to the great embarrassment of the bishops. He was a man of mediocre intelligence and very high but simple character, and his wealth (inherited) attracted cranks who, he later admitted, fatally complicated my defence of him. He was deposed but a few years later was ordained-he did not tell me what it cost-bishop of the Old Catholic Church. He explained that he thought the Church could be made a great social power if its formulae were taken symbolically but I suspect it was rather from a sort of loyalty to the memory of the pious rich lady who had him educated for the Church and left him her fortune. He was, in fact, a dogmatic materialist, did not believe in the historicity of Christ, and admitted God only as a label for whatever goodness there is in the universe.
Carl Remick