301. Letter from Mark H. McCormack to E. F. Loveland Creator: McCormack, Mark H.; Loveland, E. F. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: December 23, 1971 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
302. Letter from Mark H. McCormack to Ed Carter Creator: McCormack, Mark H.; Carter, J. Edwin, 1915- Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: February 6, 1969 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
303. Letter from Mark H. McCormack to Ed Carter Creator: McCormack, Mark H.; Carter, Ed Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: February 12, 1969 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
304. Letter from Mark H. McCormack to Ed Cowett Creator: McCormack, Mark H.; Cowett, Ed Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: June 7, 1973 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
305. Letter from Mark H. McCormack to Edgar R. Baker Creator: McCormack, Mark H.; Baker, Edgar R. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: June 12, 1968 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
306. Letter from Mark H. McCormack to Edward Block Creator: McCormack, Mark H.; Block, Edward Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: April 7, 1971 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
307. Letter from Mark H. McCormack to Edward Ettinger Creator: McCormack, Mark H.; Ettinger, Edward Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: March 29, 1973 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
308. Letter from Mark H. McCormack to Edward J. Keating Creator: McCormack, Mark H.; Keating, Edward J. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: December 5, 1969 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
309. Letter from Mark H. McCormack to Edward L. Barner Creator: McCormack, Mark H.; Barner, Edward L. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: April 9, 1975 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
310. Letter from Mark H. McCormack to Eric A. A. Bruell Creator: McCormack, Mark H.; Bruell, Eric A. A. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: June 25, 1973 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
311. Letter from Mark H. McCormack to Eric A. K. Staines Creator: McCormack, Mark H.; Staines, Eric A. K. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: February 23, 1981 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
312. Letter from Mark H. McCormack to Eric Humphreys Creator: McCormack, Mark H.; Humphreys, Eric Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: January 29, 1974 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
313. Letter from Mark H. McCormack to Ernst G. Knappe Creator: McCormack, Mark H.; Knappe, Ernst G. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: September 12, 1982 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
314. Letter from Mark H. McCormack to F. William Kreeck Creator: McCormack, Mark H.; Kreek, F. William Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: January 6, 1971 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
315. Letter from Mark H. McCormack to Fran Cipro Creator: McCormack, Mark H.; Cipro, Fran Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: June 14, 1977 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
316. Letter from Mark H. McCormack to Frank D. Tatum Creator: McCormack, Mark H.; Tatum, Frank D. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: December 23, 1981 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
317. Letter from Mark H. McCormack to Frank D. Tatum Creator: McCormack, Mark H.; Tatum, Frank D. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: March 7, 1983 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
318. Letter from Mark H. McCormack to Frank D. Tatum Creator: McCormack, Mark H.; Tatum, Frank D. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: December 22, 1982 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
319. Letter from Mark H. McCormack to Frank D. Tatum Creator: McCormack, Mark H.; Tatum, Frank D. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: February 22, 1989 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
320. Letter from Mark H. McCormack to Frank D. Tatum Jr. Creator: McCormack, Mark H.; Tatum, Frank D. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: April 6, 1990 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives