246 moved around the laboratory his duties
dictated and 1912 had office the third floor. photograph shows Charles Dally with the X-ray
machine experimental room around 1904 (figure 128). The Dally brothers worked with
Edison the X-ray project from the late 1890s until sometime the first decade
of the twentieth century.W.241
241 memorandum Edison’s handwriting describes Ott "Mechnician Chief'; unidentified
newspaper article dated September 17, 1931.
Laverty reported that Fred Ott had room the second floor, and this is
corroborated Dyer and Martin, who say that Ott could seen “in one the
many experimental rooms lining the sides the second floor. Charles Dally joined Edison’s employ with his brother Clarence-
the first man die from exposure radiation.246
Other important experimenters who might have had rooms the second floor
include the following:
Sam Moore.
243 William Meadowcroft Thompson, March 23, 1927, Biographical Collection. Lancaster’s
bench.until Edison’s death. photograph group experimenters, "the
insomnia squad," taken Building 1912 shows Moore sitting next Edison
73
. result John Otťs illness, Sam Moore became Edison’s
personal machinist and assistant. newspaper report September 17, 1931, described him as
’working side side everyday” with Edison.”243
Charles Dally.H. Wilson [?] Hird, August 18, 1911 (in 1911, Phonograph-Manufacture). also
noted that Dally came down Building and worked H. The appearance of
the walls and ceiling this room indicates that this room might have been the
second floor the south side the precision machine shop.”242 one
contemporary wrote, don’t know what would without Freddie; who kept
on the jump from morning night.244 Here was involved making the *vamish’ (recording media) coat
the surface record blanks.
248 MRH TAE, October 29, 1912 (in 1912, WOL-General). Both Edison Pioneers Records, Box 27.
242 Historian’s Note 90; see also Dyer, Martin, and Meadowcroft, Edison: His Life and Inventions, 648. Moreover Paul
Laverty said that Dally had room the second floor around 1910.
245 C.
244 Historian’s Note 90. accompanied "the old man” wherever he
carried out his experiments
