I am searching - and so far to no avail - for Marie or maybe Mary Sorenson, my grandmother. she is allegedly born in North Dakota (according to the 1910 census) but we thought that she had been born in Denmark (from her death certificate). She most likely was born between May 3 - 10, 1887. She married my grandfather, Peter Kjarsgaard in North Dakota. He homesteaded close to Heaton so I'm guessing she was in that area as well when they married. Their first two children were born in Sykeston in 1908 and 1910.
I am really looking for any information on my grandmother. I can't even get a birth certificate as I don't know her parents names. Any help or suggestions greatly appreciated!

Perhaps you should look for a marriage certificate in North Dakota Marriage database?

You could also contact the library in the town where she died and ask someone there to lookup the obituary from the local newspaper for you (sometimes on microfilm).

Also at that library there should be a section of books called Birth Marriage Death Indexed, for a certain range of years. Should you actually beable to visit that library, those books are sometimes extremely helpful - even for information you didn't know you were even looking for.

Also, I don't think that my Sorensens (and we have a Marie) are the same as your Sorensens since we have no North Dakota residents.

Hope this helps. :-)