This month's "Trip in Time" recounts presidential visits to the Bay Area from William McKinley to Bill Clinton.

Above, then-presidential candidate Sen. John F. Kennedy greets supporters at West Oakland's De Fremery Park on Nov. 2, 1960. Kennedy required a police escort to leave the park as the crowd mobbed him after his speech.

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"Trip in Time" runs every first Sunday of the month and is selected by librarian Veronica Martinez. Email feedback to vmartinez@bayareanewsgroup.com or follow us at http://oaklandtribunearchives.tumblr.com.