Vicki Pallister's children

Vicki Pallister and Troilus had two children in the 12th century BC. Vicki called them both "little heroes". (AUDIO: Frostfire)

In an alternate timeline, Vicki had two daughters named Carla and Maria with her husband, Jeran Dalton, on Astra. When the timeline was further altered, she had a son named Carl instead of Carla. The timeline was eventually undone but Vicki retained the memories of her family and chose to preserve them. (AUDIO: The Crash of the UK-201)

Behind the scenes
In The Storyteller, a minisode released in conjunction with the announcement of Doctor Who: The Collection — Season 2 Blu-ray boxset, Vicki is seen talking to a young child, Sophia, and mention is made of Sophia's mother. While it is implied that they are related to Vicki, it is not explicit.