John Thompson Jr. is 70 years old (birthdate: September 2, 1941).
This answer is closed to changes. This is done in rare cases when questions are being vandalized or answers have become debates. E-mail reopen @ answers.com (no spaces) if you would like it to be reopened.
John Drew Jr. was born on November 13, 1853 and died on July 9, 1927. John Drew Jr. would have been 73 years old at the time of death or 158 years old today.
John F. Kennedy Jr. was born on November 25, 1960 and died on July 16, 1999. John F. Kennedy Jr. would have been 38 years old at the time of death or 51 years old today.