Iris Allen met Barry Allen at a job she won at Picture News after just graduating from Columbia University. She and Barry got married and she found out about his powers through his sleep talking.

Iris later finds out that she was adopted. She was originally from the 30th century but sent back in time to save her life.

Professor Zoom had become obsessed with iris, but she rejected him. He murdered her but at that very second her soul was brought to the 30th century by her real parents. Barry killed Professor Zoom and when he was tried for the murder, she was brought back to he 20th century disguised as a juror to make sure he was acquitted. Barry and Iris left for the 30th century together. After Barry was killed in the crisis, she had his twins. She returned to the 20th century to teach her grandson, Bart, how to use his speed.