Fifteen years old.
16 and a half
Nixon McLean is 43 years old (birthdate: July 20, 1973).
Luke McLean is 24 years old (birthdate: June 29, 1987).
Jason GracePiper McLeanLeo ValdezFestusCoach Gleeson HedgeHeraThalia GraceAnnabeth ChasePercy JacksonGaeaDionysusRachel Elizabeth Dare]Butch
US singer Don McLean is 72 years old (birthdate: October 2, 1945).
62 years old
If Piper Dellums was 13 years old in 1977, she would be in her forties today.
Jason: blonde hair, blue eyes, age 15, last name Grace, brother of Thalia Grace, son of Jupiter (zeus) Piper: brown hair in two braids, (unknown eye color), age 15, last name McLean, daughter of Aphrodite Leo: Black hair, age 15, last name Valdez, we find in the son of neptune that he's known to Hazel as her old boyfriend, sammy valdez. son of Hephaestus.
Larry McLean was born on July 18, 1881 and died on March 24, 1921. Larry McLean would have been 39 years old at the time of death or 134 years old today.
John Piper is 65 years old (birthdate: January 11, 1946).
Katie Piper is 28 years old (birthdate: October 12, 1983).
David Piper is 80 years old (birthdate: December 2, 1930).