Mining equipment specialist Hendrie & Bolthoff Manufacturing & Supply Co. operated from at least 1862 to 1964. The principals were Charles F. Hendrie and Henry Bolthoff. They also sold woodworking equipment, some of which carried the Hendrie & Bolthoff name, but it is not yet known whether they made some woodworking machines themselves, or only sold rebadged OEM machines. We also have a report of heating-system boilers bearing the Hendrie & Bolthoff name; such products are outside the scope of this website, and the same is true for mining equipment.

One report of a woodworking machine bearing the Hendrie & Bolthoff name is a 27-inch bandsaw. There are a couple of makers of that size of saw who produced "white label" (unbadged) versions of 27-inch bandsaws, and we suspect that this product is from those companies, Sidney Tool Co. or Silver Manufacturing Co.

Information Sources

• An 1882 patent provided the names of the titular heads. A correspondent reported this patent date as seen on a machine in the mountains near a creek.
• One ca. 1939 catalog shows machines from American Saw Mill Machinery (saw mills, edgers, shingle machines, swing saws, cordwood saws, planers, matchers, molders, tablesaws, hollow chisel mortiser, drum/disc sander, band saws, jointers, lathes, shapers); DeWalt (radial arm saw); Union (hollow chisel mortiser); Fay & Egan (molders and shapers); Delta (full-line).
• 1949-07-29 Lead Daily Call (Lead, SD) newspaper ad, page 35.

  Deadwood Main Street, 1876. There was little need for us when the streets of Deadwood looked like this, but... the earliest history of Hendrie & Bolthoff dates back to the 1850s when Hendrie Iron Works was in operation in Burlington, Iowa. After the Colorado Gold Rush, in 1861, Charles Hendrie founded the Eureka Foundry and machine Shop at Central City, Colorado; and within a few years Henry Bolthoff joined the firm. Soon the fame of Hendrie and Bolthoff began to spread until by 1880 H. & B. machines were being used extensively throughout the western states in mining operation.

  In conformity with the advent of the automobile, H. & B. created an auto supplies department in 1915. In 1934 the branch was established here in Deadwood and our store now supplies all the Black Hills area, North and South Dakota, and parts of Montana and Wyoming. We are proud of our heritage, proud of our business, and proud of the Black Hills...

• 1994 Colorado Museum: Llist of artifacts related to Hendrie & Bolthoff (PDF).