It is hard to imagine that I first met John Loehlin when I was a first-year PhD student in Birmingham. It was July 1969, while Neil Armstrong and Buzz Aldrin were walking on the moon. The date coincided a side-trip to the Shakespeare Memorial Theatre from a “NATO Advanced Studies Institute for Psychogenetics” engineered by John Jinks and Peter Broadhurst partly to promote their emerging application of “Biometrical Genetics” to human and animal behavior. That night, on the bus to Stratford, the conferees listened with bated breath to the final moments of countdown as the astronauts prepared to blast off from the moon on the start of their return to earth.