I am familiar with the story as I used to be an Dogmatic Feeneyite back before some good priests helped me out of being as extreme...

I never heard of a "Dogmatic Feeneyite"
At any rate, since he was brought up, that whole slanderous mess is summed up in a few measly paragraphs in the introduction of the book "The Loyolas and the Cabots." What continues to amaze me is how utterly effective was the effort to completely discredit this courageous priest, even after all this time, and how effectively the tactic still works whenever it gets applied against others.......
"This book is going to press one year after the people of the United States, and eventually the people of the
world were shocked by, a stubborn profession of faith made on the part of some Boston Catholics, who were
at once silenced and interdicted by the ecclesiastical and sacerdotal authorities in what has come to be known
far and wide as the “Boston Heresy Case.”
The strangest feature of this case is not, as might be commonly supposed, that some Boston Catholics were
holding heresy and were being rebuked by their legitimate superiors. It is, rather, that these same Catholics
were accusing their ecclesiastical superiors and academic mentors of teaching heresy, and as thanks for
having been so solicitous were immediately suppressed by these same authorities on the score of being
intolerant and bigoted.
If history takes any note of this large incident (in what is often called the most Catholic city in the United States) it may interest historians to note that those who were punished were never accused of holding heresy, but only of being intolerant, unbroadminded and disobedient. It is also to be noted that the same authorities have never gone to the slightest trouble to point out wherein the accusation made against them by the “Boston group” is unfounded. In a heresy case usually a subject is being punished by his superior for denying a doctrine of his church. In this heresy case a subject of the Church is being punished by his superior for professing a defined doctrine." - The Loyolas and the Cabots