Miscellaneous biographical material concerning Hammer

Reprint from the Journal of the American Institute of Electrical Engineers, February, 1928, recto

Reprint from the Journal of the American Institute of Electrical Engineers, February, 1928, verso

Reprint from the Journal of the American Institute of Electrical Engineers, February, 1928, recto

Reprint from the Journal of the American Institute of Electrical Engineers, February, 1928, verso

Copy of roster, recto

Copy of roster, verso

Who was who in American history—Science and Technology, copy of roster, recto

Who was who in American history—Science and Technology, copy of roster, verso

The Wizard of Menlo Park, biographical entry for William J. Hammer, p. 45r

The Wizard of Menlo Park, biographical entry for William J. Hammer, p. 45v

The William J. Hammer Collection, biographical entry in newsletter, p. 6r

The William J. Hammer Collection, biographical entry in newsletter, p. 6v

The William J. Hammer Collection, biographical entry in newsletter, [p. 7r]

The William J. Hammer Collection, biographical entry in newsletter, [p. 7v]