I am looking to do a research project involving photos of United States political candidates (probably gubernatorial, but potentially Senate and/or Congressional). I would like photos from the 1920s or 1930s until about the 1980s. Digital would be wonderful, but print is also fine.
I think that these would exist in many different newspapers (The League of Women Voters possibly published this as well). A central database would obviously be ideal, but I am doubtful that one of these exists (with both winning and losing candidates). But for only winning candidates, it would still be helpful.
I have poked around some and have not had great success yet.
Any suggestions of where I should look?