found: His Ten November, 1987:t.p. (Steven Dietz)
found: His Foolin' around with infinity, c1990:t.p. (Steven Dietz) t.p. verso (copyright stmt.: Steven John Dietz)
found: Humana Festival 2016, 2017:page v (Steven Dietz) page 4 (Mr. Dietz and his family divide their time between Seattle and Austin, where he teaches playwriting and directing at the University of Texas)
found: Wikipedia web site, October 24, 2017:(Steven Dietz (born June 23, 1958) is an American playwright. Born and raised in Denver, Colorado, Dietz graduated in 1980 with a B.A. in Theatre Arts from the University of Northern Colorado, after which he moved to Minneapolis and began his career as a director of new plays at The Playwrights' Center and other local theaters. During these years he also formed a small theatre company (Quicksilver Stage) and began to write plays of his own. A commission from ACT Theatre to write "God's Country" brought him to Seattle, Washington in 1988, and he lived and worked in Seattle from 1991 to 2006. He now divides his time between Seattle and Austin, Texas where he teaches playwriting and directing at the University of Texas at Austin.) - https://en.wikipedia.org/wiki/Steven_Dietz