Emma and Jacob each share half my DNA. After that, it is strange how little kin I’ve got. Third-closest is Cousin Nancy, whose mother and my grandmother were sisters and whose father and my grandfather were (I think) first cousins. So Nancy and I share 5/64 of a genome. Just a neck behind her are Ted, Ron, and Bruce Harrington, whose father was my father’s half-brother. That’s 1/16 of a genome each. After them, I think everybody is at the 1/32 level or below.  My overlap with John Trefethen, Chairman of Trefethen Vineyards and my sixth cousin, is unfortunately just 1/8192.

[28 May 2020]