Simplify the following text for a Grade 8 native English-speaking person.
Original: Gertrude Baines married Sam Conley at a `` very young age '' and had a daughter , Annabelle , born in 1909 , who died of typhoid fever at age 18 .
Simplified: Gertrude Baines married Sam Conley at a very young age and had one daughter who died of typhoid fever at the age of 18 .