The National Genealogical Society recently posted the question on
their Facebook page, “Are you an expert on gravestones
& preservation? Is using flour (as shown in this video)
recommended? If not, what is the "current" Best Practice for helping
us better read worn tombstones?”
Flour is
NOT recommended for reading cemetery markers. Flour contains starches and
protein. Any deposit that could become “food” for biological growth is not
recommended. Just as we eat flour, other forms of life can feed on flour.
The best practice for reading
cemetery markers that are difficult to interpret, is to use a mirror. The
lighting created from a mirror across the face of a marker highlights the
raised areas to contrast the insets and make the text more visible. The mirror
allows better reading of the inscription and for photographing the marker. The
sun can do the same thing, provided that you are at the cemetery at the right
time for the sun to give a soft light across the marker’s face. The mirror can
be used on a cloudy day as well, although the light will not be as prominent.
The most
important thing to keep in mind when working with cemetery stones is that most
of the old markers are sedimentary rock. Sediment is formed by deposits of
minerals, such as calcite; and organisms, such as coral. The longer the
sediment is placed under pressure, the harder and stronger the stone can
become. The stone you are left with could be limestone, marble, sandstone,
shale, slate, etc. This is unlike granite which we are used to seeing these
days. Granite is cut with a laser. Softer stone such as limestone and marble
was utilized during the early stages of our nation, as stone masons could carve
it with hand tools. When sedimentary rock is exposed to the weather it slowly
erodes, basically a reversal of the process from which it was created. When we
humans apply any liquid, solid or pressure to the stone, we in turn are
essentially assisting in this reversal process. While most applications of
liquid are unnoticeable, we are none the less helping the marker erode. Most
cemetery enthusiasts are insistent that the information on the markers is very
important for research purposes, which it is. We must also keep in mind that
the rules of working around cemetery stones are - do NO harm and NEVER do any
work that cannot be undone. Liquids should not be applied to cemetery markers
with a few exceptions. First, inspect the integrity of the marker. If it is
crumbling, don’t touch it! If the stone is of sound condition and not going to
tip over, water can be applied. If further cleaning needs to be done, use a
neutral pH cleaner, such as D/2, which has been
used by the National Park Service and is recommended by the National Center for Preservation Technology and Training. Cleaning
should not be done often, for reasons stated above. While a lot of people love
to see a stone in pristine condition, remember the stones are not brand new,
they are older than we are! Also, algae are not always bad for cemetery markers
and more harm could be done by removing present growth. Again, it depends on
the integral condition of the stone.
Using the
application of any chemical or compound is a last resort only. Cases where this
would be applicable are if the stone in question has never been transcribed or
photographed. To perform a diligent search, you can question the caretaker or record
holder of the cemetery, the local library, genealogical society, perhaps even a
state repository. Check with nearby residents who may have researched the
deceased or perhaps are related to the deceased. Also use the information on
surrounding stones to search for relatives. This can often be done through
online sources. Make sure you get permission from the cemetery and from the
family of the deceased. Learn all you
can about cemetery preservation methods. Join a cemetery preservation group or
attend a cemetery workshop by a reputable preservationist. This is the best way
to receive hands on experience to preserve cemetery markers.
Only
then can you make the call as to whether the information on the stone is
important enough to lose the integrity of the stone. The future generations may
wonder what the cemetery stones looked like. Will they be able to find photos
and documentation to answer their questions? Always ask yourself, “How long do
I want this stone to survive”?