Southern Pacific's ferry barge, the "Mastodon" with passenger train aboard, is taken in tow by tugboats for the crossing of the Mississippi River at New Orleans.

Southern Pacific's ferry barge "Mastodon" - with accompanying tug boats - awaits passenger train moving aboard to be ferried across the Mississippi River at New Orleans, Louisiana.

This scene became commonplace by 1929 - Pennsy passenger trains headed by famed K4s Pacifics on first-class passenger runs - because the Atlantics had been retired. In this view, "The Pennsylvania Limited" train No. 5 westbound, headed by a K4s Pacific, type 4-6-2 locomotive, Engine No. 5375 rolls on the high iron at more than a mile a minute with ten cars of standard varnish.

Photograph of Southern Pacific's "Sunset Limited" train No. 1 westbound, aboard the ferry barge "Mastodon" accompanied by Engine No.73, a steam switcher, type 0-6-0, with a slope-backed tender - is being ferried across the Mississippi River from New Orleans to Avondale, Louisiana.

South Station in Boston, June 1930. At this date the large train shed was being removed as part of the overall modernization of the station. Platform canopies were the replacement. This large terminal had twenty stub end tracks. In the background a steamship is moored at the wharf and in the foreground are the tracks and depot of the Boston Elevated Railway.