41. 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
42. 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
43. 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
44. 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
45. 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
46. 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
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: July 7, 1977 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: February 26, 1975 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
49. Letter from Mark H. McCormack to Don Greer Creator: McCormack, Mark H.; Greer, Donald Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: September 26, 1968 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
50. Letter from Mark H. McCormack to Doris Simms Creator: McCormack, Mark H.; Simms, Doris Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: December 2, 1971 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
51. Letter from Mark H. McCormack to Dugan Aycock Creator: McCormack, Mark H.; Aycock, Dugan Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: June 18, 1970 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
52. Letter from Mark H. McCormack to E. E. Fannin Creator: McCormack, Mark H.; Fannin, E. E. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: May 3, 1971 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
53. Letter from Mark H. McCormack to Ed Carter Creator: McCormack, Mark H.; Carter, Ed Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: February 12, 1969 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
54. Letter from Mark H. McCormack to Edwin G. Richter Creator: McCormack, Mark H.; Richter, Edwin G. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: June 8, 1970 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
55. Letter from Mark H. McCormack to Edwin G. Richter Jr. Creator: McCormack, Mark H.; Richter, Edwin G. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: January 4, 1969 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
56. Letter from Mark H. McCormack to Eustace E. Fannin Creator: McCormack, Mark H.; Fannin, Eustace E. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: March 31, 1972 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
57. Letter from Mark H. McCormack to Eustace E. Fannin Creator: McCormack, Mark H.; Fannin, Eustace E. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: September 9, 1971 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
58. Letter from Mark H. McCormack to F. A. Demarco Creator: McCormack, Mark H.; Demarco, F. A. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: March 20, 1968 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
59. Letter from Mark H. McCormack to F. L. Tyler Creator: McCormack, Mark H.; Tyler, Watt 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
60. Letter from Mark H. McCormack to F. L. Tyler Creator: McCormack, Mark H.; Tyler, F. L. 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