Blimey ballydw
You are finding some really good stuff.
There is an archive in the Cork archives called the Exham papers. There is an online index. I think it is the records of a local solicitor. In the index there are several references to Sarah Hobbs that indicate that she must have been quite wealthy.
From that archive I was able to purchase copies of the Wills of Richard Harris and his father William Prittie Harris. It was quite an involved process and quite expensive. I'd like to get a look at the archive one day (I'm in England by the way). Anyway you can see that it looks like these families were intermingled with this reference to another Prittie. There seems to have been a group of families local to Blackrock - Harris, Prittie, Hall, Crofts, McNamara - who seem to have intermarried.
Samuel A Hobbs appears as a Freeman of Cork in this 1826 poll. I don't know if that implies wealth and/os status:
http://www.corkrecords.com/ProtMenOfCork.htmThe William Hobbs of Patrick Street, attorney is not the brother of Annie Hobbs, he was dead too soon. I guess he was related though. I think the William Hobbs of Marlboro Street was probably the brother and renting off his mother. Just to muddy the water further, Annie Hobbs married John Sudlow on 1 January 1839 in Liverpool. Four days later 5 January 1839 William Hobbs marries another of John Sudlow's stepdaughters, Mary Martindale, in Liverpool. It gets very complicated.
It's an interesting question as to whether the Hobbs came from England. The farthest back that I have been able to take my Hobbs line is Samuel Andrew Hobbs (? - 1829 as I now know)) I guess if you go back far enough the answer is yes, but how far is enough? By coincidence, I now live in Somerset, where there are a lot of Hobbs. From what I have read it seems possible that the Hobbs were involved in the Munster plantations:
http://en.wikipedia.org/wiki/Plantations_of_IrelandThe Munster plantation seems to have involved quite a number of people from Somerset. However, I have no real evidence one way or the other about the Hobbs.
Regards
Suds