Yes, with known birth time the calculation of relationship would be quite different for Alex and Ralph or any other couple. But what’s confusing is when two or more different birth locations are given, so the result would be probably even more different with London location of birth for Alex (that’s what imdb.com says).

A couple of weeks ago I’ve sent you a list of famous artists in email with Rowan Atkinson at the beginning, but soon I’ll post some well known and less known people in the forum as well.
Great work and great choice of photos!