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GySgt John O'Brien

Marine Corps | Infantry Unit Leader

Dates of Service: May 1980 - Sep 2003

VETERAN

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Influence Score: 506
73,696 out of 865,870 Veterans

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Academic Degrees

Academic Degrees

2013 - 2014

Salisbury University

Master's Degree, Geographic Information Science

2010 - 2013

Salisbury University

Bachelor's Degree, Geography

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