Workshop Agenda:

• Welcome and Introduction – Thomas Henthorn
  An overview of the day’s goals and a brief history of Glenwood Cemetery.
• Ethics, Permissions, and Planning – Thomas Henthorn
  A focused discussion on legal and ethical issues in cemetery preservation, including obtaining permission, respecting descendant communities, and planning appropriate interventions.
• Materials in Michigan Cemeteries – Thomas Henthorn
  Learn to identify and assess common stone types—such as marble, limestone, sandstone, and granite—and understand their preservation needs and vulnerabilities.
• Headstone Cleaning Techniques – Suzy Ferguson, A Loving Legacy
  A comprehensive session on conservation-approved cleaning practices:
  • Products: Selecting biological and chemical cleaners appropriate for historic stone
  • Methods: Step-by-step demonstration of effective and safe cleaning techniques
  • Dos and Don’ts: Key principles to avoid unintentional damage
  • Hands-On Cleaning: Participants will clean historic markers under guided supervision
• Lunch Break
• Lifting and Setting Stones (Demonstration Only) – Thomas Henthorn and Suzy Ferguson
  Participants will observe a live demonstration of how to safely assess, lift, and reset fallen or leaning grave markers using preservation-grade tools and techniques.
• Adhesives and Mortars for Historic Stone Repair – Melanie Purkis
  Learn about the selection and use of adhesives and lime mortars in gravestone conservation. Topics include preparation, mixing, application, and long-term performance in Michigan’s climate.