101. Letter from Mark H. McCormack to Ben Bidwell Creator: McCormack, Mark H.; Bidwell, Ben Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: May 11, 1977 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
102. Letter from Mark H. McCormack to Bennett E. Bidwell Creator: McCormack, Mark H.; Bidwell, Ben Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: December 20, 1989 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
103. Letter from Mark H. McCormack to Bennett E. Bidwell Creator: McCormack, Mark H.; Bidwell, Ben Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: September 6, 1989 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
104. Letter from Mark H. McCormack to Brenda Blumberg Creator: McCormack, Mark H.; Blumberg, Brenda Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: July 7, 1990 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
105. Letter from Mark H. McCormack to Christie Hefner Creator: McCormack, Mark H.; Hefner, Christie Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: November 18, 1987 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
106. Letter from Mark H. McCormack to Christopher Lewinton Creator: McCormack, Mark H.; Lewinton, Chris Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: April 30, 1991 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
107. Letter from Mark H. McCormack to Christopher Lewinton Creator: McCormack, Mark H.; Lewinton, Chris Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: April 6, 1991 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
108. Letter from Mark H. McCormack to Christopher Skase Creator: McCormack, Mark H.; Skase, Christopher Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: August 1, 1988 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
109. Letter from Mark H. McCormack to Colin Phillips Creator: McCormack, Mark H.; Phillips, Colin Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: July 7, 1990 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
110. Letter from Mark H. McCormack to David M. Backhouse Creator: McCormack, Mark H.; Backhouse, David M. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: May 18, 1978 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
111. Letter from Mark H. McCormack to Dennis Mathews Creator: McCormack, Mark H.; Mathews, Dennis Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: June 30, 1972 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
112. Letter from Mark H. McCormack to Edwin L. Klett Creator: McCormack, Mark H.; Klett, Edwin L. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: October 27, 1987 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
113. 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: July 7, 1990 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
114. Letter from Mark H. McCormack to George Blumberg Creator: McCormack, Mark H.; Blumberg, George Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: December 27, 1968 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
115. Letter from Mark H. McCormack to George Blumberg Creator: McCormack, Mark H.; Blumberg, George Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: March 21, 1972 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
116. Letter from Mark H. McCormack to Graham Marsh Creator: McCormack, Mark H.; Marsh, Graham, 1944- Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: July 7, 1990 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
117. Letter from Mark H. McCormack to Jay Michaels Creator: McCormack, Mark H.; Michaels, Jay Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: May 20, 1977 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
118. Letter from Mark H. McCormack to Jeff Fleishman Creator: McCormack, Mark H.; Fleishman, Jeffrey Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: November 18, 1987 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
119. Letter from Mark H. McCormack to Jules Rosenthal Creator: McCormack, Mark H.; Rosenthal, Jules Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: April 20, 1968 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
120. Letter from Mark H. McCormack to Ken Schofield Creator: McCormack, Mark H.; Schofield, Ken D. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: July 7, 1990 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives