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Opposite points where the road enters the valley on the west side of "Backbone," Iowa, late 1890s or early 1900s

Opportunity just knocked again but most of us were asleep.

Oppenheimer-Alsop Christmas Promotional, Oskaloosa, 1924; Mahaska County, Iowa

This was the scene around Christmas in 1924 if you were in downtown Oskaloosa, Iowa. Pictured here is a Christmas promotional outside of Oppenheimer-Alsop's, which served as toy town and Santa Claus's headquarters that year.

Winn Zeller has same rank as his wife

Waves and Spars receive free college training

War prisoners cost is great

Ophthalmology ward, University Hospital, The University of Iowa, 1900s

Operation on mouth of horse, 1936

""Dr. M. J. Johnson demonstrating operation on mouth of horse in large animal clinic."" Twenty nine male students are observing.

Operation on mouth of horse, 1936

""Dr. M. J. Johnson demonstrating operation on mouth of horse in large animal clinic."" Twenty nine male students are observing.

$Operation of the pilot plant fractional distillation column, 1951?$

Operation of the pilot plant fractional distillation column, 1951?

Four researchers are participating in the operation of the pilot plant fractional distillation column.

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