try this one for presidents: http://chronicle.nytlabs.com/?keyword=president%20nixon.president%20kennedy.president%20ford.president%20carter.president%20reagan.

try this one for presidents: http://chronicle.nytlabs.com/?keyword=president%20nixon.president%20kennedy.president%20ford.president%20carter.president%20reagan.president%20bush.president%20obama.president%20clinton.president%20johnson http://chronicle.nytlabs.com/?keyword=president%20nixon.pres... Seems like "jobs" has somewhat replaced "employment" and "unemployed": http://chronicle.nytlabs.com/?keyword=jobs.unemployed.unemployment.employment http://chronicle.nytlabs.com/?keyword=jobs.unemployed.unempl...