Shelley, I have no information on Dickasons residing in Oregon. If your great grandfather came from England in the late 1800’s, your line would have to be considered relative newcomers. We have a DNA project http://www.familytreedna.com/public/DickasonDNAhttp://www.familytreedna.com/public/DickasonDNA and most of us go back to colonial times. We have not been able to make a connection to England. We do have a few participants in England. If your father is living or his brother, or your brother, you might want to consider joining the project and having one of them tested. If you have not visited the site above, go there. Click on “y results” button to see the various subgroups. Click on “results” to see a description of the subgroups (this section is out of date and will be revised this year.) If you wish to join the project you can do so online. Prices for testing are cheaper through a project. It would be interesting if your line matched up with some us that have been here since the 1700s or even someone currently in England. Presumably it would be easier to follow your line since your great grandfather came over in more modern times.