I figured that Jacob and Mary E., or M. Etta, or Marietta had married in 1874 or earlier, since their first child, Charles, was born 7 December 1874. In the 1900 census, they are married 26 years. When New Jersey published the marriage index online for 1848-1878, I checked for Jacob Duryea and Mary Etta Dunham's marriage circa 1874. I found it just where I expected it to be: 1873 in Hudson County. The problem was that there seemed to be two entries for Jacob's nuptials.
I ordered copies of the ledger books. To my surprise, Jacob was married twice to Dunham women. He married Harriet Dunham in Jersey City on 12 October 1873 and M. Etta Dunham on 2 March 1874.
|New Jersey marriage ledger, volume BM, page 423.|
|New Jersey marriage ledger, volume BM, page 421.|
My little fact-checking has lead to a whole new path. What happened to Harriet Dunham, new bride of Jacob Duryea? Why did Jacob remarry so quickly, and to a relative of his first wife? The Jersey Journal is online at genealogybank.com. I found only one reference to Jacob Duryea and Miss Dunham, where they attended a "Magnolia Coterie" in March 1873. I don't know if this was Harriet or Marietta, and what made her so highly accomplished. More work ahead.