I think there's an error on the spreadsheet. Van Buren John Doe 1987 is listed on the spreadsheet, despite the fact that he's still listed as "Sequencing" according to the DNA Doe Project. Meanwhile, the 2010 Doe is "Research in Progress" on both the site and facebook.
More interestingly, VBJD 1987 shares almost the exact admixture as the Portland John Doe, who's supposed to be Asian-American or Asian like the VBJD 2010.
Long story short, Van Buren County John Doe 2010 is mislabeled as Van Buren County John Doe 1987