81. Letter from Mark H. McCormack to Gordon Jeffrey Creator: McCormack, Mark H.; Jeffrey, Gordon Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: October 6, 1987 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
82. Letter from Mark H. McCormack to Hisamitsu Ohnishi Creator: McCormack, Mark H.; Ohnishi, Hisamitsu Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: November 29, 1973 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
83. Letter from Mark H. McCormack to Ian Nelson Creator: McCormack, Mark H.; Nelson, Ian Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: April 4, 1974 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
84. Letter from Mark H. McCormack to James Murphy Creator: McCormack, Mark H.; Murphy, James Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: April 6, 1973 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
85. Letter from Mark H. McCormack to John B. Richards Creator: McCormack, Mark H.; Richards, John B. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: November 25, 1986 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
86. Letter from Mark H. McCormack to John Read Creator: McCormack, Mark H.; Read, John Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: April 6, 1973 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
87. Letter from Mark H. McCormack to K. R. T. Mackenzie Creator: McCormack, Mark H.; MacKenzie, Keith Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: April 23, 1974 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
88. Letter from Mark H. McCormack to K. R. T. MacKenzie Creator: McCormack, Mark H.; MacKenzie, Keith Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: February 27, 1979 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
89. Letter from Mark H. McCormack to Keith MacKenzie Creator: McCormack, Mark H.; MacKenzie, Keith Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: February 27, 1979 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
90. Letter from Mark H. McCormack to Mats Hasselquist Creator: McCormack, Mark H.; Hasselquist, Mats Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: June 10, 1974 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
91. Letter from Mark H. McCormack to Michael Bonallack Creator: McCormack, Mark H.; Bonallack, Michael Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: September 29, 1987 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
92. Letter from Mark H. McCormack to Michael Bonallack Creator: McCormack, Mark H.; Bonallack, Michael Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: January 16, 1992 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
93. Letter from Mark H. McCormack to Paul Graf Creator: McCormack, Mark H.; Graf, Paul J. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: April 6, 1973 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
94. Letter from Mark H. McCormack to Paul Stuber Creator: McCormack, Mark H.; Stuber, Paul Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: June 12, 1987 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
95. Letter from Mark H. McCormack to Raymond F. Herrmann, Jr. Creator: McCormack, Mark H.; Herrmann, Raymond F. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: August 8, 1973 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
96. Letter from Mark H. McCormack to Raymond R. Herrmann Creator: McCormack, Mark H.; Herrmann, Raymond R. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: June 20, 1973 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
97. Letter from Mark H. McCormack to Raymond R. Herrmann Jr. Creator: McCormack, Mark H.; Herrmann, Raymond R. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: February 19, 1974 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
98. Letter from Mark H. McCormack to Richard Ryan Creator: McCormack, Mark H.; Ryan, J. Richard Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: July 1, 1985 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
99. Letter from Mark H. McCormack to William S. Anderson Creator: McCormack, Mark H.; Anderson, William S., 1919- Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: June 23, 1973 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
100. Letter from Mark H. McCormack to Willis Roxburgh Creator: McCormack, Mark H.; Roxburgh, Willis Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: April 15, 1974 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives