My GGGGgrandparents emigrated to Canada from Amsterdam, Holland. They were in Ontario for about 2 years before moving on to the US. Are there any records that can be searched for the 1810-1822 period to find out which port they landed in, and where they originated? We've always been told that they were from Ireland, but they had sailed from Amsterdam

I would try LDS passenger emigration lists to start. Records for that time period are hit and miss. You might have more luck focusing on their life in the USA - did they apply for naturalization? What birth place did their death certificate provide? Where they the subject of any newspaper articles or biographies? Start from their deaths and work backwards. Be sure to focus on any known siblings as well - they may give a clue as to place of birth.