T. Curtright (1996)

T. Curtright (1986)

Trip to India 1984:  (1), (2), (3), (4)

T. Curtright, R. Field, P. Sikivie, and C. Thorn (1981)

Seattle meeting, 1981

T. Curtright (1980)

Albert Einstein (circa 1935)

Richard Feynman (circa 1963)

Richard Feynman (circa 1965)

Murray Gell-Mann (1967)

Theodor Kaluza (circa 1940)

Oskar Klein (circa 1950)