John Henry Haaren

Haaren's father was German and his mother Irish and English.

He studied under Prof. N. M. Butler at Columbia University, 1889–91, before becoming a teacher in New York.

In 1907 he became Associate Superintendent of Schools in New York, increasing the number and efficiency of kindergartens and starting classes to teach English to foreigners.

[2] Haaren High School (which was located on 10th Avenue between 58th and 59th Streets in Manhattan) was named in his honor.

The Charles B. J. Snyder-designed school which was initially DeWitt Clinton High School is now Haaren Hall on the campus of the John Jay College of Criminal Justice[3]