Council of Engineers of the World certificates issued to Thomas A. Ray, 1950, A2005-007-001, Box: 4, Folder: 1. Scottish Rite Masonic Museum & Library.
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Council of Engineers of the World certificates issued to Thomas A. Ray, 1950, A2005-007-001, Box: 4, Folder: 1. Scottish Rite Masonic Museum & Library. https://srmml.libraryhost.com/repositories/2/resources/1880 Accessed October 24, 2025.
