Thanks for the website , but this is more Warwickshire than Birmingham, but interesting as I do have relatives in Alcester, Warwickshire also.
Unfortunately I do not know where they lived in Birmingham, as there seems to be no record of the them on the 1911 Census. i know my own family lived in Alcester, and they are listed but not my other relatives. They came over from Italy and from what I can gather the majority of them would have settled in the Italian Quarter in Birmingham and not all of the people residing in these houses took part in the Census., From there I am unsure of where they were living until the later census information becomes available.
Tehmi77