There are many rivers in New Jersey, but here is a list of some of the major rivers. Some may have very odd names. Manasquan, Maurice, Mullica, Passaic, Rehway, Raritan, Musconetcong, and Deleware Rivers.
There are a lot more than three rivers in the south of Ireland. Some of these include the Nore, the Suir, the Barrow, the Slaney, the Lee, the Munster Blackwater, the Laune the Maigue and many, many others.
Portland got its name when Lovejoy and Pettygrove, who bought his land from Overton, flipped a penny. Lovejoy lost, he had been rooting for Boston, Massachusetts, and Pettygrove who had rooted for Portland Maine won.
There are plenty of states that have rivers with the same names. Theres the Kansas river, Missouri River, Mississippi River, and plenty more but those are examples of states that have rivers with the same name.
Ireland has huge amount of rivers. Some of those rivers include - Shannon, Boyne, Nore, Suir, Barrow, Lee, Lagan, Foyle, Blackwater, Corrib, Upper Bann, Lower Bann, Slaney, Avoca, Dargle, Garravogue, Liffey and many, many more. Too many to name here. The link below will give you the names.