Packard Commercial School, ca. 1910.

In 1858 Silas Packard started a commercial school out of two rooms at Cooper Union. His students learned the math, business, and secretarial skills needed to work as clerks in commercial firms. He would go to write a number of popular textbooks on the topic. Outgrowing a succession of buildings in the late 29th century, the school purchased a plot at 35th Street in 1910. Designed by architect H. F. Ballantyne, the Packard Commercial School was described by the architect himself as, "Georgian, or rather a modern adaptation of that early American style sometimes called Colonial.” The Commercial School closed by the mid century and the building was purchased by Yeshiva University for a women's educational facility (Stern College for Women), which it remains today.