Ballardvale District

John and William Marland were the principal investors in the Ballardvale Manufacturing Company, under whose auspices the area was developed.

It was named for Timothy Ballard, who had previously operated a sawmill and gristmill at the mill location set up by the Marlands.

For about 100 years between 1835 and 1935 there was a remarkably self-contained community here: in addition to the mills, it included shops, churches, a school, and a railroad station.

Much of the housing was relatively modest cottages on small lots, with popular styling details of the time.

One other notable structure is a c. 1872 wrought iron truss bridge that crosses the river below the mill complex.