- Islandora Repository
- Mss.B.B61_N
- Newcombe, Charles F.: To Boas. 1911 Apr. 20
- Newcombe, Charles F.: To Boas. 1911 Apr. 4
- Newcombe, Charles F.: To Boas. 1911 Mar. 17
- Newcombe, Charles F.: To Boas. 1923 Jan. 19
- Newcombe, Charles F.: To George Hunt. 1905 Aug. 18
- Newcombe, Charles F.: To George Hunt. 1906 July 5
- Newcombe, W.A.: From Boas. 1931 Jan. 29
- Newcombe, W.A.: From Boas. 1931 June 12
- Newcombe, W.A.: From Boas. 1933 Dec. 4
- Newcombe, W.A.: To Boas. 1929 Jan. 30
- Newcombe, W.A.: To Boas. 1931 Feb. 9
- Newcombe, W.A.: To Boas. 1931 May 29
