Hi Felica,
Sorry I don't have any information about Giuseppa in London, but I do have an immigration record for you since one is not linked to your family tree.
http://search.ancestry.com/cgi-bin/sse.dll?indiv=1&db=ny...New York Passenger Lists, 1820-1957
about Maria Sacbore Daughter
Name: Maria Sacbore Daughter
Arrival Date: 19 Nov 1906
Birth Year: abt 1906
Birth Location Other: morfapo
Age: 5 Months
Gender: Female
Ethnicity/Race-
/Nationality: Italian (North) (Italian)
Port of Departure: Genoa, Italy
Port of Arrival: New York, New York
Ship Name: Prinzess Irene
Source Citation: Year: 1906; Microfilm Serial: T715; Microfilm Roll: T715_799; Line: 6; Page Number: 69.
Source Information:
Ancestry.com. New York Passenger Lists, 1820-1957 [database on-line]. Provo, UT, USA: Ancestry.com Operations, Inc., 2010.
Please note that son Antonio shows the place of birth as "Morfaso".
Hope this helps some.