121. Letter from Mark H. McCormack to Fred W. Heckel Creator: McCormack, Mark H.; Heckel, Frederick W. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: September 3, 1980 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
122. Letter from Mark H. McCormack to Frederick W. Heckel Creator: McCormack, Mark H.; Heckel, Frederick W. 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
123. Letter from Mark H. McCormack to Frederick W. Heckel Creator: McCormack, Mark H.; Heckel, Frederick W. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: January 7, 1971 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
124. Letter from Mark H. McCormack to Gerlad M. Millar Creator: McCormack, Mark H.; Millar, Gerald M. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: November 29, 1968 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
125. Letter from Mark H. McCormack to H. Burger Creator: McCormack, Mark H.; Burger, H. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: April 1, 1968 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
126. Letter from Mark H. McCormack to Hale Baugh Creator: McCormack, Mark H.; Baugh, Hale, 1924-2011 Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: March 10, 1973 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
127. Letter from Mark H. McCormack to Hermann Tissies Creator: McCormack, Mark H.; Tissies, Hermann Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: October 21, 1970 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
128. Letter from Mark H. McCormack to Irish European Marketing Associates Ltd Creator: McCormack, Mark H.; Irish European Marketing Associates Ltd Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: April 30, 1968 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
129. Letter from Mark H. McCormack to Jack Urlwin Creator: McCormack, Mark H.; Urlwin, Jack Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: December 2, 1969 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
130. Letter from Mark H. McCormack to Jack Urlwin Creator: McCormack, Mark H.; Urlwin, Jack 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
131. Letter from Mark H. McCormack to Jim Hobbins Creator: McCormack, Mark H.; Hobbins, Jim Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: August 15, 1963 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
132. Letter from Mark H. McCormack to John Z. De Lorean Creator: McCormack, Mark H.; De Lorean, John Z. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: April 9, 1968 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
133. 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: September 23, 1968 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
134. Letter from Mark H. McCormack to Kent C. Fry Creator: McCormack, Mark H.; Fry, Kent C. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: April 28, 1969 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
135. Letter from Mark H. McCormack to M. C. Negrao-Ferreira Creator: McCormack, Mark H.; Negrao-Ferreira, M. C. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: June 28, 1968 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
136. Letter from Mark H. McCormack to Michael A. Ribero Creator: McCormack, Mark H.; Ribero, Michael Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: September 10, 1993 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
137. Letter from Mark H. McCormack to Olivier LeBas Creator: McCormack, Mark H.; LeBas, Olivier Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: April 15, 1969 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
138. Letter from Mark H. McCormack to Persenico Ski Creator: McCormack, Mark H.; Persenico Ski Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: August 10, 1968 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
139. Letter from Mark H. McCormack to Philip E. Beekman Creator: McCormack, Mark H.; Beekman, Philip E. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: February 25, 1983 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
140. Letter from Mark H. McCormack to R. E. Lester Creator: McCormack, Mark H.; Lester, R. E. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: March 2, 1968 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives