Found in the Lancaster Intelligencer Journal, 2 February 1914:
NEPHEW BY PARCEL POST
TWO YEAR OLD YOUNSTER SHIPPED BY MAIL FOR 18 CENTS
Wellington, Kas., Feb. 3 – Mrs. M.H. Staley, of this city, received her two year old nephew by parcel post to-day from his grandmother in Stratford, Oklahoma, where he had been left for a visit three weeks ago. The boy wore a tag about his neck, showing it had cost 18 cents to send him through the mails. He was transported 25 miles by rural route before reaching the railroad. He rode with the mail clerks, shared his lunch with them and arrived here in good condition.
I bet there are postal regulations in place against this today!
From Axer to Ziegler 