"yes the vikings went to ireland...
that is where red hair came from!"

Naw, red hair just pops up where it wants to. Queen ELizabath I had it, Vivaldi had it, C. Columbus had it. In "Aku Aku" by Thor Heyerdahl, the daughter of the mayor of Easter Island had it. It is doubtful that the Vikings were behind this.

Anyhow, a Viking is merely a pirate. There were no female Vikings, no little Vikings. The people who left Scandinavia and settled in Ireland (and elsewhere) were the Norse.