A handful of Union generals have been remembered by history as the Civil War's defining commanders.

But there were other generals who led the northern states to crucial victories during the war without earning the same fanfare.

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Every workplace has them: The loudest, most boisterous employees, constantly talking about how much work they're doing and how good they are at their jobs or making a scene with their after-work activities.

Meanwhile, quietly plugging away somewhere, there are the employees who really are good at their job, their performance going unnoticed because they simply just want to finish up and go home.

The Union Army in the Civil War was no different. Grant struggled with alcohol, Sherman had to work to maintain his sanity, and George B. McClellan just knew everyone in all the right places. Meanwhile, these guys were chugging along, slowly winning the Civil War.