Niall: September 13... 1993 At 8:15 a.m. ... 10 Pounds

Harry: February 1... 1994 At 12:06 a.m. ... 9,31 Pounds

Liam: August 29... 1993 At 1:00 p.m. ... 9,7 Pounds

Louis: December 24... 1991 At 1:47 p.m. ... 7,3 Pounds

Zayn: January 12... 1993 At 10:00 a.m. ... 8 Pounds