The Orphan Trains refers to

a$.$ an organized effort by Rev. Charles Loring Brace to take orphan children on train rides for recreation and fun.

b$.$ A program that arranged for orphans to take trains West to be adopted or fostered by farming families.

c$.$ New York's solution to the orphan problem where thousands of orphaned children were sent back to their original home via the new train system.

d$.$ an organized effort by Rev. Charles Loring Brace to transport orphaned children to farming families for seasonal help.