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Gravestone Preservation Workshops

September 4 - September 5, 2013

Frederick, MD

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Each day will have an entirely different focus, and the content will not repeat. Participants are welcome to attend either or both days. Wednesday, September 4th, will focus on all aspects of gravestone and cemetery monument repair and preservation. Thursday, September 5th, will relate to all historic masonry preservation, and is not limited to applications in graveyards and cemeteries.

Wednesday, September 4th : Basic Gravestone and Cemetery Monument Conservation

Topics to be covered include:

  • Basic geology relating to gravestones and monuments
  • Typical gravestone, monument & marker styles and common problems associated
  • Basic stone cleaning, for slate, marble, sandstone, granite and stone masonry
  • Raising, re-leveling and re-setting gravestones & monuments
  • How to repair fallen gravestones
  • Repairing fractured gravestones and monuments
  • Stone epoxies, pros and cons and proper mixing and application

Thursday, September 5th: Historic Mortars, Infill & Composite Stone Patching, Consolidation and Stone Strengthening, Water Repellants

Topics to be covered include:

  • Mortars, a brief historic overview, lime & NHL mortars,
  • Problems with Portland cement relating to gravestones, & historic masonry structures
  • Infilling, creating cementitious repair mortars, color matching and application
  • Granite composite repair materials, creating, pigmentation and application
  • Stone Cleaning, philosophy, problems with over cleaning, alternative techniques
  • Historical overview & problems associated with sealing historic stone & masonry
  • Consolidation and water repellants, pros, cons and application procedures

Workshop Logistics

Each attendant will receive a folder of printed materials.

Lunch will be provided on each day.

The workshop will be a hands on, interactive event. This means that all who attend are welcome to help perform the work, photograph, or just watch.

Pre-registration is highly advised to ensure a space.

All tools and materials are provided.

Please dress for working outdoors.

Workshop Cost
Both days- $175.00
One day- $100.00

For more information or to register, visit http://ptn.org/iptw13-workshops.htm



Jonathan Appell is a professional masonry conservation specialist with expertise in gravestone, monument, sculpture and historic masonry preservation. Trained in engineering, violin and cabinet making, sculpture and stone carving, Jonathan has worked in fields related to historic masonry for over 25 years. Over the past ten years, Jonathan has lectured and conducted preservation workshops throughout the United States and Canada. He has performed preservation projects on some of the oldest colonial tombs and gravestones in North America.

Jason Church is a materials conservator in the Materials Conservation Program at the National Center for Preservation Technology and Training (NCPTT). Church coordinates and works to further develop the Center’s national cemetery training initiative and related research. His experience is in cemetery conservation with special attention placed on cemetery ironwork. Before joining NCPTT, he was a conservator and historic metals expert for the City of Savannah, Ga., Department of Cemeteries. He earned his M.F.A. in Historic Preservation from Savannah College of Art and Design.

Moss Rudley was born in Greenbrier County, West Virginia and raised on a working cattle farm that contained numerous historic vernacular structures that required constant maintenance. His main exposure in the preservation field was in the care of hand-hewn log structures of Scotts-Irish and German notching and construction techniques. During those years he had the opportunity to dismantle, repair and reconstruct numerous log structures and their masonry features with his father. He attended Shepherd College in Shepherdstown, West Virginia and received Degrees in Business, Civil Engineering and Culinary Arts. Having lived in numerous historic homes during college and his experience at home and upon graduation he perused a career in Historic Preservation. He began working for a local preservation contractor who introduced him to the more technical and modern practices in the field. He then came to the Historic Preservation Training Center (HPTC) in 2000 as a craftsperson and became interested in the technical and practical parts project leadership. He entered into the Exhibits Specialist training program in 2004 assigned to the Masonry Division. He was certified as an Exhibits Specialist in 2007 and is currently a staff Exhibits Specialist with the Masonry division at HPTC. During his assignments he tries to bring practical experiences and inventive thought to solving preservation problems that arise during field projects.

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September 4, 2013
September 5, 2013
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Preservation Trades Network


Historic Mount Olivet Cemetery
515 South Market St., Frederick, MD United States
National Center for Preservation Technology and Training
645 University Parkway
Natchitoches, LA 71457

Email: ncptt[at]nps.gov
Phone: (318) 356-7444
Fax: (318) 356-9119