Joseph Wharton and the Nickel Mine at Gap, PA

Before Wharton

The Wharton Years: 1862-1890

Notes on Geology and Mineralogy

The Gap Nickel Mine: Lancaster, Pennsylvania and the American Nickel Works: Camden, New Jersey, 1860 to 1890

Additional Information:

Lancaster County History—Bart Township/Gap Mine

American Institute of Mining Engineers, 1895—Nickel and Nickel Steel

Lancaster County Geology, 1880—Report by Charles Doble

Newspaper articles, 1867, 1940