underground railroad

At the ceremony and afterward I got to thinking about the Underground Railroad.

How did you gather information about the Underground Railroad, which was a clandestine, illegal activity?

If all the people who claimed to work on the Underground Railroad really had, the South would have been drained of slaves.

Mrs. Reed, the former slave and conductor on the Underground Railroad?

How about Belle Mills, the milliner who worked on the Underground Railroad?

Much later in our national history, Springfield became one of the most important stations of the "Underground Railroad."

There will be an underground railroad line along every principal route of travel.

"The underground railroad is in fine working order," is the comment of The Journal.

To some of his friends it seemed possible—just a step beyond the Underground Railroad and hiding fugitive slaves.

My body was born amidst slavery, but my conscience soon found the underground railroad.