<Ul> <Li> Craig Arnold as Jeffery "Jeff" Crawley </Li> </Ul> <Li> Craig Arnold as Jeffery "Jeff" Crawley </Li> <Dl> <Dd> Georgie's biological older brother . His parents died in a car accident . Jeff lives somewhere else, but he keeps in touch with his little sister . Jeff looks up to Ty . Even though Jeff doesn't spend time with Georgie when he comes to visit, he does care about her . After "Written in Stone" Jeff isn't seen again . </Dd> </Dl> <Dd> Georgie's biological older brother . His parents died in a car accident . Jeff lives somewhere else, but he keeps in touch with his little sister . Jeff looks up to Ty . Even though Jeff doesn't spend time with Georgie when he comes to visit, he does care about her . After "Written in Stone" Jeff isn't seen again . </Dd>

How old is mallory in season 3 of heartland