In 1957 Dublin reached the All-Ireland final once again. However, O’Connor was out of favour with the management and was not in the starting line-up for the game. With Dublin struggling with ten minutes left in the game, O’Connor was brought on and showed her talent once again by scoring the winning goal. Although she was only 19, she had just won her fourth All-Ireland medal. This victory began an amazing run of success that by 1966 saw O’Connor win ten All-Ireland medals in a row. This achievement is unique to O’Connor and one that is unlikely to be ever equalled. In 1963 and 1964 she had the honour of captaining her native county to back-to-back victories.