She was operated by Vulcan Steamship from 1907 to 1915 in the Great Lakes coal, iron ore, grain and stone trades.

While laid up for the winter (1922–23) in Fairport, Ohio, she was reconstructed and updated; this work changed her tonnage to 4220 gross and 2671 net.

This routine was permanently disrupted on November 11, 1940 as a ferocious storm swept the lakes late on that Monday afternoon.

Considered to be the worst storm to that point on Lake Michigan, it saw 75 mph winds and rain turning to snow.

[1] The sunken hull of the Davock was discovered in May 1972, capsized in over 200 feet (60m) of water, off Little Sable Point Light, not far from the wreck of the SS Anna C. Minch, which went down in the same storm, also with all hands.