An interesting finding from “Genetic heritage and native identity of the Seaconke Wampanoag tribe of Massachusetts” (Zhadanov et al., 2010):
Surprisingly, one of the NRY Seaconke haplotypes (no. 8) that represented a primary male ancestor of the tribe possessed the M230 marker, which indicated that it belonged to haplogroup S [formerly K-M230] (Karafet et al., 2008) (Tables 3 and 4). Haplotypes from this paternal lineage are commonly observed in different populations from Papua New Guinea and Melanesia (Kayser et al., 2003; Karafet et al., 2005; Friedlaender et al., 2006; Scheinfeldt et al., 2006; Hudjashov et al., 2007), but have not previously been reported for Native American populations. According to the Seaconke Wampanoag genealogical records, this male ancestor was an 18th century sailor from Australia who settled in the New England area, and married a Wampanoag woman. Based on this information, it had been assumed that this individual was of European descent. However, in light of the new information about his Y-chromosome haplotype, this man clearly appears to have had Melanesian paternal ancestry.
As Ishmael less delicately put it: It was now quite plain that he must be some abominable savage or other shipped aboard of a whaleman in the South Seas, and so landed in this Christian country. I quaked to think of it.
Zhadanov, S. I., Dulik, M. C., Markley, M., Jennings, G. W., Gaieski, J. B., Elias, G., & Schurr, T. G. (2010). Genetic heritage and native identity of the Seaconke Wampanoag tribe of Massachusetts. American Journal of Physical Anthropology, 142(4), 579-589.