A year ago—or gosh, it's been longer than that—I wrote a post about how numerology calculates your "birth number." According to John Michael Greer (magician, occultist, and former archdruid), this number "represents the fixed framework of your personality and your life, and it sums up the things about you that won’t change no matter what. It defines the lesson you have come into this incarnation to learn."
At the time I explained that Brother has a birth number of 4 ("the challenge you face in this incarnation is to learn self-discipline and build solid foundations") and I have 22 (basically the same as 4 but with a rich inner life).
Wife and Marie are both 8's ("the challenge this incarnation sets before you is that of worldly accomplishment"). Son 1 and Son 2 are both 6's ("the challenge you face in this incarnation is learning how to accept responsibility for others").
But I wasn't quite sure what to make of Mother. Her birth number comes out to 5, an unstable number about which Greer says "you are impatient with routine …. you do unexpected things and are constantly heading for new places, and when you get into trouble – which happens fairly often! – you are good at finding a way out." But when I look at her today (in her 80's, admittedly) she is a respected professional in a field that demands a certain level of routine; her recent travel has all been to visit her siblings and their families; and when Father was acting so fecklessly as a businessman, she kept things grounded and running. Somehow none of this fits well with the almost-chaotic temperament I just described.