The word Bridget as a slang term

I’m reading a paper on racism regarding the poet Emily Dickinson for a class, and it references the word Bridget in one of her poems as a racial slur. The author does not distinctively define how the word is racist, simply that it is. I’ve looked through slang dictionaries and googled the heck out of it, but I can’t find what it’s supposed to mean. The closest I’ve gotten is that Bridget was an Irish saint, thus it’d be an insult to Irish women, but that’s a total WAG.

The poem in question is here. http://209.16.199.17/lieder/d/dickinson/spider3.html

My question isn’t whether or not the poem is racist, because that’s my assignment, I’d just like to know what the word is supposed to mean.

Thanks.

St, Bridget wasn’t just an Irish saint. She is the second patron saint of Ireland. The use of her name as a racial slur is just like calling all Irishmen Paddy or Mick, or refering to blacks as Jemima or Rastus. It characterizes the women as being poor, ignorant and no-account.

“Bridget” seems to have be used generically to indicate an Irish servant girl (much as “George” was used for Pullman porters).

“Paddy and Bridget” were the standard names for Irish racist stereotypes in the nineteenth century.

From here:

(See here for more on this.)

From here: