Published In:
Ann Arbor News, August 9, 1937
Caption:
EVERY 18 MINUTES A BOAT PASSES: Detroit and St. Clair rivers are parts of one of the busiest waterways in the world. Through them from the beginning of navigation in April to its end in December passes a constant parade of boats - one boat every 18 minutes on an average, day and night.

Published In:
Ann Arbor News, August 18, 1937
Caption:
HIDDEN DOCKS AT CALCITE - Here is one of Henry Ford's freighters, Edgewater, being loaded with crushed limestone - used in steel manufacture - at a dock hidden from public view by great mills, giant conveyors, and huge piles of material. This particular boat leaves no smoke trail behind it, as it is a Diesel motor ship. The docks at Calcite are busy during navigation season, a special parade of boats plying between here and various steel mill ports.