Connecticut Historical Society, 1920-1943 Box 1, Folder 9 Bookmark Collection Context Connecticut State Library, State Archives Mathias Spiess papers, 1892-1944Series 1. Correspondence, 1903-1944
Connecticut State Library, 1920-1943 Box 1, Folder 10 Bookmark Collection Context Connecticut State Library, State Archives Mathias Spiess papers, 1892-1944Series 1. Correspondence, 1903-1944
Connecticut Tercentenary, 1934-1935 Box 2, Folder 2 Bookmark Collection Context Connecticut State Library, State Archives Mathias Spiess papers, 1892-1944Series 2. Subject Files, 1924-1943
Connecticut Tercentenary Commission, 1934-1935 Box 1, Folder 11 Bookmark Collection Context Connecticut State Library, State Archives Mathias Spiess papers, 1892-1944Series 1. Correspondence, 1903-1944
Correspondence Bookmark Collection Context Connecticut State Library, State Archives Mathias Spiess papers, 1892-1944Restricted, 1928
D, 1933-1939 Box 1, Folder 12 Bookmark Collection Context Connecticut State Library, State Archives Mathias Spiess papers, 1892-1944Series 1. Correspondence, 1903-1944
Drawings/Pictures, undated Box 2, Folder 4 Bookmark Collection Context Connecticut State Library, State Archives Mathias Spiess papers, 1892-1944Series 2. Subject Files, 1924-1943
E-F, 1928-1944 Box 1, Folder 13 Bookmark Collection Context Connecticut State Library, State Archives Mathias Spiess papers, 1892-1944Series 1. Correspondence, 1903-1944
Geneology, 1930-1943 Box 2, Folder 5 Bookmark Collection Context Connecticut State Library, State Archives Mathias Spiess papers, 1892-1944Series 2. Subject Files, 1924-1943
G-H, 1920-1943 Box 1, Folder 14 Bookmark Collection Context Connecticut State Library, State Archives Mathias Spiess papers, 1892-1944Series 1. Correspondence, 1903-1944