Mirai Trunks (Future Trunks)

Chibi Trunks (small or little Trunks)

Chibi Trunks Grows up much differntly then Mirai Trunks for one his father is not killed and he also has a best friend named Goten (Goku's 2nd son)  He is able to trun super Saiya-jin by the age of eight.  He also won the teckinboudioki (I don't know how to spell it thats the best I could do!) ^__^  2nd place was taken by Goten.

Trunk's father is kill when he is only one year old along with everyone else exsept Gohan and Goku (he dies of a heart attack)
Gohan begins training him to become a super Saiya-jin when he is 13
He travles back to the past and give Goku heart medication.
Mirai Trunks helps fight the Andriods and Cell

Family...
Mother: Bulma
Father: Vegiita
Grandfather: King Vegiita, Dr. Brifs
Grandmother: unknown
Best Friend (of chibi): Goten
Trainer (of mirai): Gohan

Ages of Mirai..
he is one when Vegiita dies he is 13 when Gohan desides to train him he is 17 when he goes back to the past and he is 18 when Cell kills him and he is 18 when he goes back to his time.

The Sword of Trunks.
Tapion is set free in movie 13 by the dragon and he with help from Goku and chibi Trunks kills the monster in him.  He gives his sword to Trunks at the end of the movie before he leave.  Mirai Trunks gets his sword from the same person but slightly differnt arangement.