81. Letter from Mark H. McCormack to Clarence D. Price Creator: McCormack, Mark H.; Price, Clarence D. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: October 18, 1969 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
82. Letter from Mark H. McCormack to Cliff Minshull Creator: McCormack, Mark H.; Minshull, Cliff Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: December 11, 1971 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
83. Letter from Mark H. McCormack to Cliffe, Dekker and Todd Creator: McCormack, Mark H.; Cliffe, Decker and Todd Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: December 17, 1967 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
84. Letter from Mark H. McCormack to Conkey Swimming Pool Supply Company Creator: McCormack, Mark H.; Conkey Swimming Pool Supply Company Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: April 17, 1961 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
85. Letter from Mark H. McCormack to Curtis Person Creator: McCormack, Mark H.; Person, Curtis Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: May 9, 1963 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
86. Letter from Mark H. McCormack to D. Byford and Company, Limited Creator: McCormack, Mark H.; D. Byford and Company, Limited Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: December 18, 1967 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
87. Letter from Mark H. McCormack to David Foster Creator: McCormack, Mark H.; Foster, David R. (David Ramsey), 1920-2010 Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: December 7, 1974 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
88. Letter from Mark H. McCormack to David Foster Creator: McCormack, Mark H.; Foster, David R. (David Ramsey), 1920-2010 Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: August 28, 1974 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
89. Letter from Mark H. McCormack to David Foster Creator: McCormack, Mark H.; Foster, David R. (David Ramsey) Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: January 18, 1975 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
90. Letter from Mark H. McCormack to David Foster Creator: McCormack, Mark H.; Foster, David R. (David Ramsey), 1920-2010 Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: June 13, 1975 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
91. Letter from Mark H. McCormack to David Foster Creator: McCormack, Mark H.; Foster, David R. (David Ramsey), 1920-2010 Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: September 8, 1975 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
92. Letter from Mark H. McCormack to David H. Fobel Creator: McCormack, Mark H.; Fobel, David H. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: June 24, 1970 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
93. Letter from Mark H. McCormack to David R. Foster Creator: McCormack, Mark H.; Foster, David R. (David Ramsey), 1920-2010 Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: November 15, 1978 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
94. Letter from Mark H. McCormack to David R. Foster Creator: McCormack, Mark H.; Foster, David R. (David Ramsey), 1920-2010 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
95. Letter from Mark H. McCormack to David R. Foster Creator: McCormack, Mark H.; Foster, David R. (David Ramsey), 1920-2010 Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: March 1, 1978 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
96. Letter from Mark H. McCormack to David R. Foster Creator: McCormack, Mark H.; Foster, David R. (Daivd Ramsey), 1920-2010 Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: April 27, 1977 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
97. Letter from Mark H. McCormack to David R. Foster Creator: McCormack, Mark H.; Foster, David R. (David Ramsey), 1920-2010 Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: September 3, 1976 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
98. Letter from Mark H. McCormack to David R. Foster Creator: McCormack, Mark H.; Foster, David R. (David Ramsey), 1920-2010 Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: December 4, 1975 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
99. Letter from Mark H. McCormack to David R. Foster Creator: McCormack, Mark H.; Foster, David R. (David Ramsey), 1920-2010 Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: July 7, 1977 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
100. Letter from Mark H. McCormack to David R. Foster Creator: McCormack, Mark H.; Foster, David R. (David Ramsey), 1920-2010 Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: February 26, 1975 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives