241. Letter from Mark H. McCormack to Ben Bidwell Creator: McCormack, Mark H.; Bidwell, Ben Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: December 7, 1972 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
242. Letter from Mark H. McCormack to Ben Hogan Creator: McCormack, Mark H.; Hogan, Ben, 1912-1997 Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: October 16, 1968 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
243. Letter from Mark H. McCormack to Ben Hogan Creator: McCormack, Mark H.; Hogan, Ben, 1912-1997 Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: February 12, 1973 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
244. Letter from Mark H. McCormack to Bennett E. Bidwell Creator: McCormack, Mark H.; Bidwell, Ben Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: August 14, 1982 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
245. Letter from Mark H. McCormack to Bob Beattie Creator: McCormack, Mark H.; Beattie, Bob, 1933- Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: July 19, 1968 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
246. Letter from Mark H. McCormack to Brian Avnet Creator: McCormack, Mark H.; Avnet, Brian Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: November 18, 1987 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
247. Letter from Mark H. McCormack to Bruce Crampton Creator: McCormack, Mark H.; Crampton, Bruce Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: September 9, 1970 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
248. 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: August 7, 1969 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
249. 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: January 19, 1979 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
250. 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: February 11, 1985 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
251. 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: January 25, 1977 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
252. 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: July 18, 1969 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
253. 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: January 9, 1980 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
254. 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: December 23, 1977 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
255. 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
256. 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: January 9, 1980 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
257. 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: December 11, 1980 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
258. 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: August 1, 1983 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
259. Letter from Mark H. McCormack to Burton Stanier Creator: McCormack, Mark H.; Stanier, Burton Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: February 13, 1991 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
260. Letter from Mark H. McCormack to C. E. Minshull Creator: McCormack, Mark H.; Minshull, Cliff Format: Letters/Correspondence; Manuscripts Collection: Mark H. McCormack Papers, ca. 1920-2008 (bulk: 1957-2003) Date: November 29, 1976 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives