288 William Meadowcroft Edison, March 29, 1912 (in 1912, Phonograph-General, 5).
291 Norman Speiden interview, June 1973, Oral History Project, pp.Pierman’s work was billed the accounts musical experiments.
280 MRH TAE, January 12, 1914 (in 1914, WOL-Photograph Department). (hereafter cited Historical Research
Dept. carried out
experiments phonograph records and also worked Building developed
a method electroplating masters with silver and copper and also produced an
"air“ reproducer which used compressed air increase the volume phonograph
playback.287 His work recording the sound the piano must certainly have
taken place the third floor Building 5.)
Through the early part the twentieth century, the photographic studio was kept
busy making photographs the Edison plant and products; also handled the
82
. Greene’s former room the
"Galvanometer Room.
202 Norman Speiden, "Plan Action the Project Care for the Laboratory Group," June 28, 1939,
Records Historical Research Department, Thomas Edison, Inc.
By 1920, four experimenters were work the third floor: Mr.). Huenlich. Whelan began working for Edison 1902 and became the
laboratory photographer around 1915.
Samuels, Mr. Cummings, and Mr. 4," 4.289
Bill Lyman. His printing operation may have moved Building 1914,
when Edison approved his taking over Dr. 30-31; see also NPS, "HSR, Part
I, Metallurgical Laboratory, Building No.291 worked the laboratory until the
1930s.
288 "Report Work Done the Laboratory," John Constable TAE, October 23, 1920, Engineering
Department Records, Box 11, Edison folder. The department was kept busy making prints machines and products for
advertising purposes and meeting the insatiable public appetite for images of
Thomas Edison.“290
Joseph Whelan. was supervised Harris, was Huenlich, who inspected
Ediphones. Harris worked phonograph
governor development, and Samuels electrical instrument repair and
standardization. Cummings unpacked, tested and examined eight disc
phonographs from the Silver Lake plant each week and reported his findings to
factory inspectors. Harris, Mr. Lyman ran small studio and dark room during the period after
1900.288
287 Weber [?] Gilmore, April 1902, Record Manufacturing Division Records, Box 15; Memorandum
of Frank Dyer, January 1909, Record Manufacturing Division Records, Box 16.292 (See 167 for more Joseph Whelan
