Frances E. Andrews (far right), ca. mid-1950s.

Frances E. Andrews, ca. mid-1950s. Used with the permission of the Hunt Hill Audubon Society.

Frances E. Andrews, ca. 1907. From the Ernest Oberholtzer papers, Manuscript Collection, Minnesota Historical Society.

Frances E. Andrews’ high school graduation portrait, Lee Bras, 1903. From the Ernest Oberholtzer papers, Manuscript Collection, Minnesota Historical Society.

Frances E. Andrews, ca. 1900. From the Ernest Oberholtzer papers, Manuscript Collection, Minnesota Historical Society.

Frances E. Andrews, ca. 1907. From the Ernest Oberholtzer papers, Manuscript Collection, Minnesota Historical Society.

On a railroad bridge west of Two Harbors, a DM&IR freight consisting entirely of ore cars, or jennies, is seen being pulled by a powerful Yellowstone type steam locomotive, ca. 1940. The locomotive behind it was the most recent locomotive acquisition at the time of the photo.

A Yellowstone locomotive pulls a string of jennies near Duluth, 1940.

Ore cars being loaded at the Hull-Rust mine at Hibbing, 1937.

Ore cars being unloaded at Dock 6 in Duluth, 1935. The ore dropped to large chutes below where waiting Great Lakes freighters were loaded for their journey to steel mills.