Logan's 日期 of Birth: September 14, 1989 (27 years old) Carlos' 日期 of Birth: August 15, 1989 (27 years old) James' 日期 of Birth: July 16, 1990 (26 years old) Kendall's 日期 of Birth: November 2, 1990 (26 years old)
Carlos' the oldest, followed 由 Logan, then James, and Kendall is the youngest.