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Northrop Grumman Corp.

John C. Stuelpnagel, software analyst, dies

John C. Stuelpnagel, software analyst, dies

John C. Stuelpnagel, a retired Northrop Grumman software analyst and world traveler, died of heart failure May 23 at Symphony Manor in Roland Park. He was 79.

The son of Daniel Stuelpnagel, an egg dealer, and Elva Triggs Stuelpnagel, a homemaker, John Clay Stuelpnagel was born in Houston and spent his youth in Yankton, S.D.

After graduating from the Cranbrook School, a private school in Bloomfield Hills, Mich., he earned a bachelor's degree from Yankton College in Yankton.

As a graduate student he came to Baltimore and entered the Johns Hopkins University, from which he obtained a doctorate in mathematics in 1962.

While in graduate school, he met and fell in love...

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