70 people died that day for the right of irish protestants to parade the streets of new york?

Question

a passage from a paperback published in the early 1960's. although mainly set in the five points area, the above refers to the orange/green riots of 1872.
can anybody help with the author or title?

Answer 1

That's a good question... could it possibly have been a reference from the book, "The Gangs of New York" which was written by a historian and later made into the movie?