Invited discussion of 'Statistical Consulting is Scholarship' by W. J. Wilson." Welsch, Roy E. The American Statistician Vol. 46, No. 4 (1992): 302-304.

Discussion of 'Teaching Statistical Computing Using Computer Packages' by Ronald A. Thisted." Welsch, Roy E. The American Statistician Vol. 33, No. 1 (1979): 34.

Discussion of 'Statisticians Can Matter' by Harry V. Roberts." Welsch, Roy E. The American Statistician Vol. 32, No. 2 (1978): 52-53.

The Hat Matrix in Regression and ANOVA." Hoaglin, David C. and Roy E. Welsch. The American Statistician Vol. 32, No. 1 (1978): 17-22.