Renke Gustav Lubben was born on March 7, 1898, at Utica, Nebraska. His family moved to Jackson County, Texas, and he entered the University of Texas in 1916. He there received his B.A. in 1921 and his Ph.D. in 1925; he was R.L. Moore's second Texas doctoral student. Lubben remained at the University of Texas at Austin for his whole career. He taught courses in advanced geometry, advanced algebra, analytic geometry, and trigonometry. His research was in point-set topology and foundations of geometry. He died in 1980.
From the guide to the R. G. Lubben Papers, 1922-1974, (Archives of American Mathematics, Center for American History, The University of Texas at Austin)