Needed: Child Actors for small roles in Short Film

Hi, I am a freshman and aspiring filmmaker at Temple University. I am looking for child actors to play the following parts for my Sci-fi/drama film, “Last Thursday”.
Age ranges:5-13

V- A young boy, will be in flashbacks with his sister Des.

Des- Des is a little girl, who will be a key part in the plot of the film. She will be in a few flashbacks.

If any parents are interested in their child playing an easy part, feel free to contact me matthewceklosky@gmail.com