Wilbur "Bill" Jack Hartmann of Bluffton, South Carolina passed away peacefully and rather suddenly after a brief stay in Hilton Head Hospital. He was 90 years old. He was predeceased by his wife ...

Here is a Day in the Life of a Rockstar to your children. Hartmann teaches them the ABCs and other educational material at the preschool and primary level. Usually, Hartmann begins his day with a ...

The 74-year-old creates educational videos that can get millions of views a day.

John "Jack" L.Hartmann, age 77, of Culpeper, Va., died on Tuesday, January 17, 2017. He is survived by his wife of 58 years, Nancy Hartmann; two children, Lanny Hartmann and his wife, Vera Schoeters, ...