I am looking for any information, particularily marriages of these twins, born March 20 1849, in Haarlam Holland. I have their birth certificates, showing father as Dirk Bakker. My great grandfather Jacobus married Jacoba Knoop, but I do not know where or when.(I have been told that she gave up royalty to marry Jacobus Bakker "a commoner") Any info would be greatly appreceiated. I also have been unable to confirm when & how they came to the USA. They settled in Missoula, Montana. Not much is known about Marius other than that he left Montana to go to Spokane, Washington.