According to the 1880 US Census here....
Residing at 12th St. NYC
Antonino and August (Agostina?) were both born in Italy.
HOWEVER, children Frank (4), and Katie (7 months), were born in New York City.
Are you saying there was another child?
ON the arrival manifest for 1874 -
Agostina Landino (age 19) is listed on the line below Salve Landino (age 24)
Antonino Caldara is listed a few lines further down.
Unfortunately, the manifest does not indicate marital status...
Name: Antonino Caldara
Arrival Date: 2 Jul 1874
Birth Date: abt 1844
Age: 30
Gender: Male
Place of Origin: Italy;Sicily
Port of Departure: Gibraltar
Destination: United States of America
Port of Arrival: New York, New York
Ship Name: Assyria
The family again in 1892...
All 5 children listed as born in US
T.