Cubs historical sleuthing: Opening Day edition

Getty Images has this to say about this photo:

Manager Leo Durocher #2 of the Chicago Cubs lines up during player introduction before the start of a Major League Baseball game against the San Francisco Giants circa 1968 at Candlestick Park in San Francisco, California. Durocher managed the Cubs from 1966-72.

This is obviously a photo from Opening Day. Look at the bunting on the side walls of the stadium in this full view of the photo:

Since it’s Opening Day at Candlestick Park, all we have to do is look up when the Cubs opened the season at San Francisco during Durocher’s tenure as manager.