41. 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: October 14, 1987 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
42. 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: August 28, 1990 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
43. Letter from Mark H. McCormack to Daniel Tully Creator: McCormack, Mark H.; Tully, Daniel P. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: September 14, 1987 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
44. Letter from Mark H. McCormack to David B. Fay Creator: McCormack, Mark H.; Fay, David B. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: September 5, 1990 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
45. Letter from Mark H. McCormack to David Gilmour Creator: McCormack, Mark H.; Gilmour, David, 1931- Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: February 3, 1977 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
46. Letter from Mark H. McCormack to David J. Sealey Creator: McCormack, Mark H.; Sealey, David J. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: May 21, 1973 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
47. 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 23, 1977 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
48. Letter from Mark H. McCormack to David Sword Creator: McCormack, Mark H.; Sword, David Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: February 5, 1974 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
49. Letter from Mark H. McCormack to Donald Johnston Creator: McCormack, Mark H.; Johnston, Donald Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: September 5, 1978 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
50. 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: May 11, 1988 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
51. Letter from Mark H. McCormack to Frank Olson Creator: McCormack, Mark H.; Olson, Frank A., 1932- Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: September 6, 1988 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
52. Letter from Mark H. McCormack to Freddy Alcantara Creator: McCormack, Mark H.; Alcantara, Freddy Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: April 1, 1991 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
53. Letter from Mark H. McCormack to Freddy Alcantara Creator: McCormack, Mark H.; Alcantara, Freddy Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: February 18, 1991 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
54. Letter from Mark H. McCormack to Fritz Ferreira Creator: McCormack, Mark H.; Ferreira, Fritz Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: February 26, 1971 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
55. Letter from Mark H. McCormack to Greg Peters Creator: McCormack, Mark H.; Peters, Gregory B. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: April 27, 1978 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
56. Letter from Mark H. McCormack to Gregory Peters Creator: McCormack, Mark H.; Peters, Gregory Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: June 11, 1971 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
57. 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: April 1, 1991 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
58. 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: February 18, 1991 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
59. Letter from Mark H. McCormack to Howard Smith Creator: McCormack, Mark H.; Smith, Howard Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: November 26, 1986 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
60. Letter from Mark H. McCormack to Jack A. Vickers Creator: McCormack, Mark H.; Vickers, Jack A. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: December 8, 1989 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives