I've recently found information that may indicate that my name (GURGANUS) is related to GRIGANNIS, GRIGANIS, or GRIGONIS. So to test this, my first question is if anyone with this name or a variation has had a Y-DNA test done?

If not, and you are a male with this name, would you be able to do a test?

Finally, are there any good sources of information for finding family history for this name around the 1500-1700 timeframe? I know my family has been in the US since the early 1700's, so I'd be interested in the period before this.