In the City of St. Marys, the Historic Preservation Commission works to preserve the historic, cultural, and architectural resources found in the City's Historic District. Along with the commission, the City is part of the Certified Local Government Program and Main Street Program, both of which seek to preserve historic resources while encouraging economic revitalization and development in historic downtown areas.
- Georgia State Historic Preservation Office (SHPO) - Also known as the Georgia Department of Natural Resources Historic Preservation Division - Provides information and resources specific to preservation efforts in the state of Georgia.
- The Georgia Trust for Historic Preservation - Provides information for funding, education, and other preservation resources available through the organization.
- Georgia Alliance of Preservation Commissions - Provides information on efforts of the statewide non-profit organization which helps to support and educate preservation commissions in Georgia.
- Advisory Council on Historic Preservation - The Advisory Council on Historic Preservation advises the President of the United States of America and the US Congress on national historic preservation policy and promotes preservation through legislation.
- National Park Service Historic Preservation Division - Provides information on documentation, preservation, and conservation of historic resources.
- The Association for Preservation Technology International - The Association for Preservation Technology International (APT) provides information on the theory, practice, and technology related to preservation and material conservation.
- National Trust for Historic Preservation - Provides information on federal historic preservation regulations, resources, and opportunities.
- National Center for Preservation Technology and Training - Provides resources, training, and research in preservation practices throughout the United States of America including workshops for repair and material conservation.
- National Preservation Institute - Provides professional training through seminars in historic preservation and cultural resource management.
- Historic Resources Committee - The Historic Resources Committee is an American Institute of Architects (AIA) Knowledge Community that works to integrate preservation practices, adaptive reuse, and similar goals into contemporary architectural design practices.
- Conservation OnLine - Conservation OnLine (CoOL) provides online resources and educational materials for professionals working in material conservation and cultural resource management.
- Partners for Sacred Places - Seeks to preserve sacred spaces (churches, synagogues, mosques, etc.) through revitalization, rehabilitation, and renovation.
- The National Register of Historic Places - Search the National Register of Historic Places through the National Park Service's online archive to discover nationally listed buildings throughout the United States of America.
- Historic American Building Survey/Historic American Engineering Record/Historic American Landscapes Survey - Search the Historic American Building Survey (HABS), Historic American Engineering Record (HAER), and the Historic American Landscapes Survey (HALS), which make up the Heritage Documentation Program, through the Library of Congress to discover documented historic structures.
- The National Historic Preservation Act - This document is the amended (through December 2016) National Historic Preservation Act of 1966.
- The Secretary of the Interior's Standards for the Treatment of Historic Properties - Provides information on the recommended preservation methods, approaches, and treatments for historic properties as recommended by the National Park Service Historic Preservation Division.
- What is Considered Historic? - A brief document from the Georgia State Historic Preservation Office which discusses how histoirc districts and properties should be assessed when writing and amending Histoirc Preservation Ordinances.
- Whole Building Design Guide for Historic Preservation - Provides information on integrating historic preservation practices with safety, accessibility, and natural disaster response.
