Richard Alpert returns, checks out baby Locke

Here, we see Emily Locke, her mother and the nurse standing next to baby John Locke. The nurse tells them that he is being referred to by the other nurses as the "miracle baby" due to his being the youngest premature baby to survive at the hospital. He also had infections and pneumonia and fought them off. Before she can hold John, Emily runs out of the room saying, "I can't do this." Emily's mother asks about adoption as she starts to light a cigarette before being told by the nurse that she can't smoke there.

Then comes the best part of the scene. Richard Alpert returns for the first time since season 3 (Cane was good but I'm glad it's gone so Nestor Carbonell could return to Lost). He appears at the window looking in on baby Locke. The nurse asks Emily's mother if he's the father and she says she's doesn't know who he is. Again, Richard Alpert appears to be the same age as every other appearance, even though it's the 1950s this time.

Why was Alpert watching Locke and how did he seem to know that Locke was special from his birth?

Emily Locke in Hosptial gives birth to John

Here we see Emily at the hospital after she is hit by the car. She tells the nurse that she is almost six months pregnant. She then gives birth to John Locke and he is put into isolation due to being premature. She yells to the nurse to name him John.

Emily Locke as a teenager hit by car

Here we see Emily Locke as a teenager as well as her mother, John Locke's grandmother. She is in her room listening to the Buddy Holly song "Everyday" when her mom comes in and asks her if she is going out with "him." I assume him means Anthony Cooper (or whatever is real name is). She runs out into the street in the rain and gets hit by a car.

Lostpedia has the date of John's birth listed as May 30, 1956, but the Buddy Holly song "Everyday" wasn't released as a b-side to "Peggy Sue" until 1957. Was the song placement a mistake or is John's date-of-birth wrong?

Also, who was driving the car that hit Emily? Was is similar to the experience Anthony Copper claims to have had when he was brought to the island?