- Islandora Repository
- Mss.B.B61_K
- Keppel, Frederick P.: From Boas. 1937 Jan. 7
- Keppel, Frederick P.: From Boas. 1937 June 1
- Keppel, Frederick P.: From Boas. 1937 June 14
- Keppel, Frederick P.: From Boas. 1937 June 29
- Keppel, Frederick P.: From Boas. 1937 Nov. 23
- Keppel, Frederick P.: From Boas. 1937 Nov. 4
- Keppel, Frederick P.: From Boas. 1937 Oct. 12
- Keppel, Frederick P.: From Boas. 1938 Feb. 21
- Keppel, Frederick P.: From Boas. 1938 Nov. 4
- Keppel, Frederick P.: From Boas. 1938 Sept. 29
- Keppel, Frederick P.: From Boas. 1939 Apr. 3
- Keppel, Frederick P.: From Boas. 1939 Feb. 9
