John Jacob Ross was a Canadian Baptist clergyman. Though he claimed degrees he did not earn, he was educated enough to produce several doctrinal booklets. He was born in 1870 and died in 1935. Russell filed a criminal libel complaint against him which went to trial in 1913. After the trial Ross published Some Facts and More Facts About the Self-styled Pastor Charles T. Russell. In it Ross quotes from the transcript, omitting a key word to so as to have Russell claim to know Biblical Greek. In fact, all Russell said is that he could recognize some of the Greek alphabet.
There is a long story here. The book I mentioned in my first post tells some of it. Schulz and de Vienne [my mother] told some of it in both volumes of Separate Identity. Ross's booklet is still quoted by polemicists without fact checking. This makes them look rather stupid, and it makes them complicit in a falsehood. The only writer that I know of who revised their work to present an accurate quotation is Walter Martin in the revised edition of Jehovah of the Watchtower. Martin's books have other flaws and his beliefs were outside evangelical Christianity, but he was an honest scholar if not always a careful scholar.