My father is a Farren from Moville in Donegal. I am not however very good with our genealogy. I don't think Hugh Joseph Farren is directly related but he may be a grand-fathers cousin. Having said that I don't even know my own grand-fathers full name so that could well be it.
I have emailed my own father your post and will come back to you once I learn anything new on the topic. Good to hear from you anyway. Best of luck, Phil.