41. Fax from Mark H. McCormack to Peter Smith Creator: McCormack, Mark H.; Smith, Peter Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: September 29, 1993 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
42. Letter from Chet Heyman to Mark H. McCormack Creator: Heyman, Chet; McCormack, Mark H. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: December 11, 1972 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
43. Letter from Mark H. McCormack to A. E. Brubaker Creator: McCormack, Mark H.; Brubaker, A. E. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: April 13, 1972 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
44. Letter from Mark H. McCormack to Bryan Cowgill Creator: McCormack, Mark H.; Cowgill, Bryan, 1927-2008 Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: May 18, 1979 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
45. Letter from Mark H. McCormack to Christian Henrion Creator: McCormack, Mark H.; Henrion, Christian Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: October 23, 1971 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
46. Letter from Mark H. McCormack to Christopher J. Gorringe Creator: McCormack, Mark H.; Gorringe, C. J. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: February 20, 1991 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
47. Letter from Mark H. McCormack to Christopher J. Gorringe Creator: McCormack, Mark H.; Gorringe, C. J. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: February 13, 1990 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
48. 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 18, 1976 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
49. 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: May 10, 1976 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
50. Letter from Mark H. McCormack to Ed Carter Creator: McCormack, Mark H.; Carter, J. Edwin, 1915- Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: February 6, 1969 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
51. Letter from Mark H. McCormack to Ed Cowett Creator: McCormack, Mark H.; Cowett, Ed Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: June 7, 1973 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
52. Letter from Mark H. McCormack to Fran Cipro Creator: McCormack, Mark H.; Cipro, Fran 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
53. Letter from Mark H. McCormack to Frank Hannigan Creator: McCormack, Mark H.; Hannigan, Frank Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: June 12, 1977 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
54. Letter from Mark H. McCormack to Frederick R. Eckley Creator: McCormack, Mark H.; Eckley, Frederick R. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: November 6, 1970 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
55. Letter from Mark H. McCormack to George Cole Creator: McCormack, Mark H.; Cole, George Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: January 30, 1969 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
56. 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: August 27, 1984 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
57. Letter from Mark H. McCormack to J. 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: November 5, 1977 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
58. Letter from Mark H. McCormack to John Curry Creator: McCormack, Mark H.; Curry, John Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: October 12, 1989 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
59. Letter from Mark H. McCormack to John L. Notter Creator: McCormack, Mark H.; Notter, John L. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: September 1, 1978 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
60. Letter from Mark H. McCormack to John L. Notter Creator: McCormack, Mark H.; Notter, John L. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: September 1, 1978 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives