MARSHALLTOWN, Iowa — Researchers and volunteers have completed a project to mark the graves of Civil War veterans in a Marshalltown cemetery.

The Catholic Soldiers’ Lot at Riverside Cemetery is the final resting place for 31 Civil War veterans, but until recently, only about half of the graves were marked.

A team of people secured Veterans Affairs-issued headstones for the remaining 16 men, The Times-Republican ( ) reported, and the final headstone was installed last week.

Burial records exist for all the men laid to rest in the Catholic Soldiers’ Lot, but the locations of the burials as listed didn’t match with the marked graves. Since there was no way of knowing the exact resting place of the men in the unmarked graves, volunteers had to research information about the 16 men by collecting census data from the Marshalltown Public Library.

“We had their names, but little other information, so one by one, we had to research their identities and figure out dates of birth, death and years of military service,” cemetery volunteer Jerry McCann said. “We know they were mainly of Irish descent, and some German, who when they died, wanted to be buried in this section.”

The team of volunteers decided to order flat stones for the unmarked graves to differentiate them from the upright graves of the ones that had been previously marked.

Information from: Times-Republican,