It includes a trip to a worlds fair by train, including hitching a ride
I know it's 1876
The principals are like some wonderful women I know
Reference to Maine's marine/trade heritage
Spoiler alert:
Betsy gets a bit of cash from a vistor. She sallies forth, walking to the station but before she get there she hitches a ride on a frieght. At the Philadelphia Centennial she befriends everyone, buys gifts for here friends and comes home.
This looks like a great site for all things Sarah Orne Jewett