Allegorical interpretation of 'My darling Clementine'
I read this interpretation in Tag Gallagher's "John Ford, the man and his movies", which is probably the best book on John Ford out there. I'm not sure whether it applies to Ford's thinking, but it's sure interesting; according to it Wyatt Earp is the USA. Once he marshalled Dodge City (World War I) and retreated (isolationism). Then his cattle is robbed and his brother murdered (Pearl Harbor) so he returns to marshalling, this time Tombstone (World War II), to combat the evil Clantons (Japan and Germany). To do so he makes a questionnable alliance with Doc Holliday (the Sowjet Union), ends up victorious and restores order and peace, but can't really win Clementine's love (the acceptance by the rest of the world).