Family members take after other members in the family. Like how some children- would either take after their mother or even their father. In some cases it could even be grandparents that they take after (I am talking about your kids that you have)
It is all caused by genetics
No, I believe that was the Keirsey family.
The Personality of the Deity was created in 1838.
The Authoritarian Personality was created in 1950.
Mr. Personality was created in 2003.
The Personality Test was created on 2006-07-12.
The Personality Kid was created on 1934-08-01.
Journal of Research in Personality was created in 1988.
Cult of Personality - song - was created in 1987.
European Journal of Personality was created in 1987.
Journal of Personality Assessment was created in 1936.
Uncorrected Personality Traits was created in 1997.
Split Personality - song - was created in 1986.