In responce to Mary Jefferson, Old Swedes Church is in Wilmington, Delaware, now called Trinity Church, I believe. They have a website. The church was originated by the Swedes in the 17th century, but many denominations married there. Marriage records are available, but a bit steep in price. I have a Quaker ancestor recorded married there in 1731, who was promptly disowned by the Friends. As far as what religion they would be, where they came from would probably give you a clue. Bob Cooke