[Kraus in Ohio State classroom, 1970s]
Kraus in Ohio State classroom, helical antenna in background; 1970s. (NRAO/AUI/NSF image)



[Kraus at Big Ear antenna, late-1960s]
Ohio State radio telescope, "Big Ear". (NRAO/AUI/NSF image)



[Kraus high school graduation photo, 1926]
Kraus high school graduation photo, 1926. (NRAO/AUI/NSF image)