361. Letter from Mark H. McCormack to James A. Ryder Creator: McCormack, Mark H.; Ryder, James A. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: February 20, 1974 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
362. Letter from Mark H. McCormack to James B. Hoefer Creator: McCormack, Mark H.; Hoefer, James B. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: December 22, 1972 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
363. Letter from Mark H. McCormack to James DeLeone Creator: McCormack, Mark H.; DeLeone, James Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: May 3, 1972 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
364. Letter from Mark H. McCormack to James R. Spence Creator: McCormack, Mark H.; Spence, Jim Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: May 16, 1981 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
365. Letter from Mark H. McCormack to James T. Aubrey Creator: McCormack, Mark H.; Aubrey, James T., 1918-1994 Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: December 28, 1970 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
366. Letter from Mark H. McCormack to James W. Donlely Creator: McCormack, Mark H.; Donley, James 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
367. Letter from Mark H. McCormack to James Wolahan Creator: McCormack, Mark H.; Barrack, William S. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: September 5, 1972 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
368. Letter from Mark H. McCormack to Janice Hall Creator: McCormack, Mark H.; Hall, Janice Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: March 31, 1981 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
369. Letter from Mark H. McCormack to Jay Michaels Creator: McCormack, Mark H.; Michaels, Jay Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: November 7, 1968 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
370. Letter from Mark H. McCormack to Jay Michaels Creator: McCormack, Mark H.; Michaels, Jay Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: April 29, 1969 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
371. Letter from Mark H. McCormack to Jerry Johnston Creator: McCormack, Mark H.; Johnston, Jerry Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: February 15, 1973 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
372. Letter from Mark H. McCormack to Jerry Johnston Creator: McCormack, Mark H.; Johnston, Jerry Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: February 15, 1974 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
373. Letter from Mark H. McCormack to Jerry Johnston Creator: McCormack, Mark H.; Johnston, Jerry Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: February 11, 1974 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
374. Letter from Mark H. McCormack to Jim Herman Creator: McCormack, Mark H.; Herman, Jim Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: April 21, 1969 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
375. Letter from Mark H. McCormack to Jim Herman Creator: McCormack, Mark H.; Herman, Jim 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
376. Letter from Mark H. McCormack to Jimmy Hill Creator: McCormack, Mark H.; Hill, Jimmy Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: September 23, 1969 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
377. Letter from Mark H. McCormack to John A. H. Curry Creator: McCormack, Mark H.; Curry, John Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: December 13, 1991 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
378. Letter from Mark H. McCormack to John D. Laupheimer Creator: McCormack, Mark H.; Laupheimer, John D. Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: May 18, 1981 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
379. Letter from Mark H. McCormack to John D. Read Creator: McCormack, Mark H.; Read, John Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: November 24, 1971 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
380. Letter from Mark H. McCormack to John Dewars Creator: McCormack, Mark H.; Dewars, John Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: August 7, 1973 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives