Morgan was born on January 18, 1993 in Burbank, California. When she was 18 months old, she accidentally fell into a ThermoScan Ear Thermometer commercial. She stopped acting for a while after that but then nailed the part of Kim Baker in the box-office hit, Cheaper by the Dozen.

In 2004 Morgan booked the role of LuLu Plummer in "The Pacifier" along with Vin Diesel and Brittany Snow.

In July of 2005 she once again portrayed Kim Baker in "Cheaper By The Dozen 2."

Morgan has two siblings, a sister named Wendy, who will be 11 in July and a brother named Thomas who will turn 7 in February. She is very close with both of her siblings and spends a lot of time with them. The three of them love to play their game systems and Morgan's favorite game is Harry Potter and the Goblet of Fire. She is a huge fan of the Harry Potter books and movies and loves the character Hermione Granger. Morgan is currently in the 7th grade. Her favorite subject is English and does very well in it.
Is the oldest child, has two younger siblings named Wendy and Thomas. Her parents are divorced. Sister of Wendy York.