Johan Anderson, Anna Charlotta Anderson, Anders Svenson, Ingri Bentson

[Kris Rasmusson Fulton]

Hello,  
I am trying to find information on my Greatgreatgrand parents, Johan Anderson and Anna Charlotta Anderson & Anders Svenson and Ingri Bentson. All I have are their names gotten off of a marriage certificate for their children (my Greatgrandparents) Oskar Johanson (birth Sept 1, 1864) and Marie Svenson (birth August9,1864).Both Oskar and Marie were born in Sweden. Marie had a sister Bertha. Oskar and Marie came to New York around 1880, met each other, married and settled in Jersey City, New Jersey. Could someone tell me where I should look next to try to learn a town/city or what I should do next to trace my heritage? Thank you for any help you could give me.