Eles não conseguiram ter filhos.
De acordo com The Starships & amp; Colecção de Veículos # 3 , Owen e Beru não conseguiram ter uma família própria.
In the dark days that followed, the fall of the Republic seemed distant to Owen and Beru on dusty Tatooine. Then one of the last of the harried Jedi, Obi-Wan Kenobi, delivered a child to Owen and Beru. This was their nephew, Luke, secret son of the fallen Anakin. Unable to have a family of their own, Owen and Beru were content.
Luke's foster parents provided a loving home, but they were haunted by the spectre of Anakin. Owen could not stop Luke from showing traits that he had seen in Anakin.
Desde então, esse backup foi feito no Star Wars: De um ponto de vista específico a href="http://starwars.wikia.com/wiki/Beru_Whitesun_Lars_(short_story)"> Beru Whitesun Lars .
It’s not as if I wasn’t expecting it [thought Beru]. The day Ben Kenobi put that little baby in my arms was both the best and worst day of my life. Best because Owen and I couldn’t have a child of our own, and suddenly we did.
...
I won’t lie to you—I thought about it. Especially right before Luke came along, when Owen and I had just found out we’d never be able to have kids of our own. Our only resort was to start seeing one of those fancy fertility droids in Mos Eisley. It almost didn’t seem worth it, though, when you consider what Mos Eisley was like back in those days.