Due to the fact that Eleven was raised in a government building, and given powers beyond comprehension, having a family was never at the forefront of her mind, mainly because she thought she didn’t have any. But in season 2, we discover that there are more children that were taken here. Considering she is number 11, there are bound to be others.
It is in season 2 that Eleven and her former roommate Eight are reunited and share their powers with one another. Before Eleven encounters Eight, there are a few references to the number 8. Eleven meets her mother in season 2 and as she is leaving the Tv turns to Action 8 news… in her mother’s house.