Harold K. Miller was born in 1950 and grew up in southern New Jersey. He attended Indiana University of Pennsylvania, earning a B.A. in Art in 1972 and a Masters in Printmaking and Education in 1975.

After surviving 32 years as a teacher in the Pennsylvania public school system, Harold retired in 2006 and began painting full time. Beginning with small plein-air studies, he gradually moved on to larger studio paintings. Of particular interest is a current series depicting the farm structures on the Gettysburg battlefield.

Harold resides in Indiana, Pennsylvania with his wife Susan and is represented by Gallery 30 in Gettysburg, PA.