No, Delong and DeLong aren't Italian names. The article 'de' means 'of, from' in French. The equivalent in Italian is 'di'. But it may have started out as an Italian name that was translated into French by Italians who decided to settle in France or French speaking areas of Italy.
For example, the Dutch last name 'Vanderbie' originally comes from Italy. The family was 'Abella' in the Genoa/Pisa area of north Italy. The name became 'Abeille' with a move into France. And then it became 'Vanderbie' with the branch that relocated to the Netherlands.
Yes, 'Antonio' is a common Italian name. It is the Italian equivalent of the English name 'Anthony'.
No, 'Trevino' is not an Italian name. It is a Spanish surname.
In Italian Patrick is: Patrizio
In Italian, the name "Seda" does not have a specific meaning. It is not a common Italian name.
The Italian name for Lisa is "Elisa".
Barrett DeLong's birth name is Barrett James DeLong.
Jia Delong was born in 1985.
Sophie Delong was born in 1957.
Solomon DeLong died in 1925.
Solomon DeLong was born in 1849.
Barrett DeLong is 5' 10".
Lauren DeLong is 5' 2".
Mardi DeLong is 5' 3".
Candice DeLong goes by Candy.
Charles E. DeLong was born in 1832.
Charles E. DeLong died in 1876.
Nate DeLong died on 2010-05-05.