McG,

"As we've dared to call the monkeys in the Zoo by Irish names, Erin's sons, in wrath, declare us snobs and flunkies ;
And demand that we withdraw them–nor should we ignore their claims–
For it's really very hard–upon the monkeys"

That is an example of racist contempt for the Irish in USA.
That whole page is overwhelmingly about the US and does not support you contention at all.