Is it possible for a 13yrold to remember something from 12 years ago in their life?

Yes, it is possible for a 13-year-old to remember something from when they were around a year old, but such memories are often fragmented and not always reliable. Typically, most people begin to form lasting memories around the age of three or four, so memories from infancy are quite rare. However, if a significant event occurred during that time or if the memory has been reinforced by stories or photographs, it might be more vivid for the child.