So when I run various calculators on the Oracle, there seems to be a consistent Scandinavian element in my results despite the fact that I don't have much in the way of Scandinavian ancestry. My father is Scottish and English with distant Dutch (18th century and back and only one line with a major Dutch element in the 18th century) and my mother is mostly Irish with with a smaller input of German, from the Rhineland and Prussia. I think I have one Norwegian ancestor from the 1600s, one Danish from the 1600s, and perhaps one Swedish in the early 1700s. Here is some of my results I am speaking of:

Eurogenes K13

(Least-squares method.)
Using 1 population approximation:

1 Orcadian @ 3.551213

(Gaussian method.)
Using 1 population approximation:
1 Norwegian @ 4.286704

Using 2 populations approximation:
1 Norwegian+West_Scottish @ 4.125801

Eurogenes K15

(Least-squares method.)
Using 1 population approximation:

1 Southwest_English @ 5.013739
2 Southeast_English @ 5.37436
3 Danish @ 6.113479
4 Icelandic @ 6.248169

Using 2 populations approximation:
1 South_Dutch+Icelandic @ 4.058124

Using 3 populations approximation:
50% West_Norwegian +25% French_Basque +25% North_Swedish @ 3.491653

Using 4 populations approximation:
1 French_Basque+North_Swedish+Icelandic+West_Norwegi an @ 3.491653

Dodecad K47
(Least-squares method.)

Using 1 population approximation:
1 Icelandic @ 6.000578

Using 2 populations approximation:
1 French_Northwest+Icelandic @ @ 4.620953

Using 3 populations approximation:
1 50% Icelandic +25% French_Northwest +25% French_West @ 3.945775

Using 4 populations approximation:
1 French_Northwest+French_West+Icelandic+Icelandic @ 3.945775

(Gaussian method.)

Using 1 population approximation:
1 Orcadian @ 3.18496

Using 2 populations approximation:
1 French_West+Icelandic @ 3.126978

Using 3 populations approximation:
1 50% French_West +25% Icelandic +25% Icelandic @ 3.126978

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So is this Viking ancestry? Perhaps the distant Dutch/German in my tree? A combo of the two? Something else?