Hundreds of Civil War veterans are resting in the St. Paul's historic Oakland Cemetery, but one man says their memory and sacrifice is sometimes overlooked or forgotten -- and he's on a mission to change that.

Years ago, Patrick Hill stumbled across a badly weathered grave marker belonging to an Civil War captain. Since then, he's been on a mission to replace other Civil War-era gravestones at the cemetery and remind people about the veterans' sacrifice.

"There are probably six to 800 Civil War guys in here," Hill estimated.

Rows and rows of gravestones in all shapes and sizes bare the names and memories of the past, including the one belonging to Capt. Wilson B. Farrel....