It's my understanding that many graves went unmarked, at least with a permanent stone marker, because of the expense of the things. A professionally carved gravestone could cost as much as new cart or a good horse. Wooden markers were the norm for the less wealthy, and they might be buried in a collective area such as a potter's field. Of course as time went by, the wooden markers would decay and require repairs and replacement, but how long might that be kept up?

The north side of the Children's Community Services (toward the right) building has an area adjacent to the Center that has no marked graves. Another area adjacent to Church Street has only five markers, but it looks like something was installed underground south of there; there is a small hill and only one gravestone near the the street. Either or both of these spots may be communal potter's graveyard.