Which were the last six Clubs from outside the Top Flight to reach FA Cup Finals?

The last six Clubs from outside the Top Flight to reach FA Cup Finals are:

1. Cardiff City (2008)
2. Millwall (2004)
3. Sunderland (1992)
4. Queens Park Rangers (1982)
5. West Ham United (Winners 1980)
6. Southampton (Winners 1976)

FA Cup Finals 

FA Cup 2020-21

FA Cup Quiz