The names have been changed to give some degree of privacy in this not-so-private world.
How many degrees of separation? Today is Mary's birthday. Jane, her little sister, posted a greeting on her FB time line. FB told me Jane, “friend with Bill Smith”, posted on Mary's wall. Now I don’t know Jane, but I know her sister out here in Tahoe. Bill was my student in Fredonia NY in the 70’s when he was in middle and high school. He and Jane know each other well enough to be friends on FB. Social media has cut the degrees of separation at least in half.