- Plus two from Oliver Sheean
- Lamb to Mrs. Elizabeth R. Butterworth ( ½ p., TLS) — March 23, 1926
- Lamb to Butterworth (1 p., itemized receipt) — April 16, 1926
- Lamb to Butterworth (1 p., TLS) — Feb. 26, 1927
- Lamb to Butterworth (1 p., TLS w/ ½ p. receipt) — March 22, 1927
- Lamb to Butterworth (1 p., TLS w/ ½ p. receipt) — March 29, 1927
- Lamb to Butterworth (1 p., TLS w. 1 p. itemized receipt) — April 13, 1927
- Lamb to Butterworth ( ½ p., receipt) — June 17, 1927
- Lamb to Butterworth (1 p., TLS) — Dec. 4, 1928
- Lamb to Butterworth (1 ½ pp., TLS w/ 1 p. itemized receipt) — Jan. 10, 1929
- Lamb to Butterworth ( ½ p., TLS) — Dec. 2, 1930
- Lamb to Butterworth ( ½ p., receipt) — Jan. 26, 1931
- Lamb to Mrs. Butterworth’s daughter (2 pp. TLS w/ envelope) — April 20, 1933
- Lamb to Butterworth (1 p. TLS) — November 28, 1933
- Lamb to Butterworth (1 p., TLS) — Dec. 5, 1934
- Lamb to Butterworth ( ½ p., TLS) — Jan. 11, 1935
- Lamb to Butterworth (1 p., TLS) — Oct. 22, 1936
- Lamb to Butterworth (1 p., TLS) — March 17, 1937
- Lamb to Butterworth (1 p., TLS) — May 4, 1937
- Lamb to Butterworth ( ½ p., TLS) — April, 1937
- Lamb to Butterworth (1 p., TLS w/ ½ p. receipt) — Oct. 12, 1937
- Lamb to Butterworth (1 p., TLS w/ ½ p. receipt) — Nov. 30, 1937
- Lamb to Butterworth ( ½ p., receipt) — March 17, 1937
- Lamb to Butterworth (1 p., TLS) — Dec. 14, 1937
- Lamb to Butterworth (1 p., TLS) — Nov. 14, 1939
- Lamb to Butterworth (1 p., TLS w/ envelope) — Feb. 26, 1939
- Lamb to Butterworth (1 p., TLS) — April 8, 1940
- Lamb to Butterworth (1 p., TLS) — Sept. 22, 1941
- Oliver Sheean to Harold ? (4 pp., ALS) — Nov. 14, 1934
- Lamb to Paul E. Gray ( ½ pp., TLS) ¾ Sept. 13, 1938
- OCS [Oliver C. Sheean] to Gray ( ½ pp. ALS w/ postcard-Norman A. Hall) — Jan. 23, 1941
- Lamb to Dane Yorke ( 2 pp., TLS) — Nov. 17, 1941