Joe Dunman's Schoolhouse for Colored Students was opened in District No. 28 as early as 1886.  It closed at the end of the 1887-1888 school year.

Opening a school for colored students was a progressive step for District No. 28, since fewer than half of the Harris County school districts offered an education to colored students. 

When District No. 28 was split into two parts during the summer of 1888, the school was closed down, and students attended a new school in District No. 28 called the Narrow Gauge School.  It was called this because it was located in an old rail car.  The railroad in the Humble area at the time ran on narrow gauge tracks.

The exact location of the school in not known.