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Grout, Frank F.: Clay Studies (Box 19, Folder 05)
Grout, Frank F.: Collecting Samples for Heavey Accessories - Giants Range (Box 23, Folder 06)
Grout, Frank F.: Cook and Lake County (Box 20, Folder 08)
Grout, Frank F.: Cook County, 1 (352) (Box 20, Folder 05)
Grout, Frank F.: Cook County, 2 (353) (Box 20, Folder 05)
Grout, Frank F.: Cook County, 3 (Box 20, Folder 08)
Grout, Frank F.: Cook County - Above highway 61 (Box 20, Folder 04)
Grout, Frank F.: Cook County and Drilling Tucker Lake (Box 21, Folder 06)
Grout, Frank F.: Cook County (Box 19, Folder 02)
Grout, Frank F.: Cook County (Box 19, Folder 03)