The mill generated wheat flour, which was generally sold in Baltimore.

The businesses, generally combined within the owners' residences, served Mill Green and area farmers.

An arrangement was established between Nathan and Susanna Bemis and the Ashmores in which the Ashmores lived in the original stone house, received a $10,000 bond, and received enough meat, produce and other food for three people.

[2] Built in a distant and rural area, it became a self-sufficient community into the 19th century, with the establishment of a doctor's home and office, purchase of vacant land by farmers, and settlement of additional skilled tradesmen.

[2] In the mid-20th century, a new road was built west of the village which led to Dublin and Darlington, Maryland and up to Susquehanna and Tidewater Canal at Havre de Grace.

third quarter of the 19th century), Mill Green Store and Post Office (ca.

[2] John Ashmore's widow, Margaret, and Natham Bemis became embroiled in what the Pennsylvania courts saw as a kidnapping and the Maryland courts saw as a lifetime enslavement of Margaret Morgan by John Ashmore's heirs.