Elsie, I am an Isaak descendant from ND. In looking at records for St. Petersburg at Odessa3.org, I find no Lorenz Isaak listed. I did find 3 Elisabeth Frey's mentioned. My search for ship records states that an Elisabeth Frey, age 1, arrived in NY on the SS Werra 18 Oct 1884. Others on the ship with her are Elisabeth 30, Heinrich 17, Johann 15, Jacob 4, and Eva 2. The age of the younger Elisabeth, b about 1883 might be right for your Elisabeth married 1902. I'm curious if you know where in ND the first four children might have been born? Where Lorenz and Elisabeth might have lived there? That may give us more leads as to the family lineage. John Sailer