My Father and Grandfather were “yellow dog democrats”. I had never heard the phrase “blue dog democrats” until maybe 10 years ago. Now it seems to be the preferred one.
Jimmy Carter did the impossible. He got my Father to vote for a republican. He voted for Reagan and never looked back.
The Blue Dog Coalition was formed in 1995
https://en.wikipedia.org/wiki/Blue_Dog_Coalition
2016 Election
Brad Ashford (NE-2) - Defeated
Gwen Graham (FL-2) - Retired
Loretta Sanchez (CA-46) - Ran for Senate & was defeated