Jen

Jen, called Jane in "Jane or Who", is a 17 year old, 3 months away from her 18th brthday.

Jane
Her name is  Jane in "Jane Or Who". "Jane" is 16.

Jen In the other stories except "August" and "Flowers"or any other stories appeared with another name or appeared unnamed, her name is Jen and is 17 years old. Jen is in high school and wants to go to university. Jen is only 3 months away from her 18th birthday. She already started university one month later.

Mary
In "August", she was named Mary, and is 16.

15-year-old Brookswood teen
In "Flowers", she appeared as an unnamed 15 year old.

Birchwood Street 18-year-old (Elliott)
She appears as an 18-year-old (named Elliott) living there. She is only referred to as the Birchwood Street 18-year-old.

Other names
Candace=In one story, she is named Candace. She is 17.
 * -|Jen II =Jen II and Jen III are names referring to the second and third time the character is named Jen.
 * -|Sam=Sam is the name given to the character in one story. Sam is a 16-year-old.