Noun
orphan train (plural orphan trains)
(historical) One of the trains, operating between 1854 and 1929, that transported orphaned and homeless children from crowded Eastern cities of the United States to foster homes located largely in rural areas of the Midwest.
The Special Achievement Award was presented to John Shontz, Director of the Orphan Train Project in Helena, Montana, who served as the keynote speaker at this year's celebration. Source: Internet