[3] In 1747, Frederick Rohrer, a Mennonite from Germany, arrived in Philadelphia with his two oldest sons Samuel and Martin and the rest of his family.

Frederick purchased property just east of Hagerstown from his brother Jacob, who had emigrated some years earlier.

In 1763, Frederick's son Samuel bought three large tracts of land just north of Rohrersville at the same time John Rohrer of Lampeter, PA (perhaps a cousin?)

[4] By the mid 1790s, most of Samuel's children had left the area, but two of his sons, John and Frederick, remained, as did Capt.

Frederick in turn had several sons, two of whom, Daniel and Samuel, are credited with starting a grist mill in the early 1800s that led to the formation of the village of Rohrersville.

The rail line was started at Weverton, located at the southern end of Pleasant Valley, shortly after the Civil War, and ran through Pleasant Valley northwest to Hagerstown, where it connected to the other rail lines that converged there.

The arrival of the railroad heralded a second era of prosperity for Rohrersville and many of the buildings in the village, displaying a variety of Victorian architectural styles, date to this period.

The first church in Rohrersville, a log structure open to the use of several congregations, was built in 1842 on the site of the present town cemetery.

[6] According to the United States Census Bureau, the CDP has a total area of 0.8 square miles (2.1 km2), all land.