- Islandora Repository
- Mss.B.B61_E
- Emmons, S.F.: To Boas. 1906 Mar. 15
- Emmons, S.F.: To Boas. 1911 Mar. 4
- Emptage, Arthur: To Boas. 1938 Dec. 16
- Endell, Fritz: From Boas. 1919 July 11
- Endell, Fritz: To Boas. 1919 June 9
- Enderlin, Marie: From Boas. 1933 July 31
- Enderlin, Marie: From Boas. 1933 Mar. 28
- Enderlin, Marie: From Boas. 1933 May 25
- Enderlin, Marie: To Boas. 1933 Aug. 5
- Enderlin, Marie: To Boas. 1933 July 1
- Enderlin, Marie: To Boas. 1933 May 4
- Engelhardt, George: From Boas. 1927 Sept. 28
