272 OBITUARY. 
PIERRE OTIS KEILHOLTZ 
ASSOCIATE 
Pierre Otis Keilholtz was born in Baltimore, Md., on April 22, 1862, the son of Otis 
and Emily Keilholtz. 
After preliminary preparation in schools in Baltimore, he entered the U. S. Naval 
Academy, Annapolis, Md., on October 1, 1880, as a Cadet Engineer. In August, 1882, by 
operation of law, the Cadet Midshipmen and Cadet Engineers were consolidated, and Cadet 
Keilholtz became a Naval Cadet in the consolidated Corps of Cadets. He graduated with 
credit in June, 1884, but resigned shortly thereafter to enter Johns Hopkins University for 
a special post-graduate course. 
After two years at Johns Hopkins in post-graduate electrical work, Mr. Keilholtz be- 
came identified with the Electric Light, Power and Street Railway Corporation, of Balti- 
more, being soon placed in responsible charge of design, construction and operation work. 
He remained with this corporation until 1907, when he established himself in private practice 
as a consulting engineer. 
Mr. Keilholtz established, while at the Naval Academy, a fine reputation as a painstak- 
ing, thorough student, and was a man of unusual force of character and personal attraction. 
After leaving the Navy his career as a scientific and practical electrical engineer was a nota- 
ble one. His reputation and influence in the community in which his life and work were 
thoroughly known and appreciated is well expressed in an editorial in one of the leading 
Baltimore papers—the Baltimore Sun—which in commenting on his death referred to him 
as follows: 
“A man of originality of thought as well as commanding authority in his profession, 
Baltimore has reason to lament sincerely the loss of a citizen who truly loved his native 
town, and who was always ready to devote his talents to its material welfare and 
development.” 
Mr. Keilholtz was a Charter Associate Member of the Society of Naval Architects and 
Marine Engineers, and, while not often a direct contributor to its transactions, was always 
interested in its work and gave it his support through continued membership up to the end. 
Mr. Keilholtz was also a member of the American Institute of Mechanical Engineers, 
American Institute of Electrical Engineers, American Institute of Naval Engineers, Ameri- 
can Society for the Advancement of Science and other scientific organizations and social 
clubs. During the World War Mr. Keilholtz served as Recruiting Officer for the Army in 
the Baltimore area. 
Mr. Keilholtz died at Baltimore, Md., on January 21, 1922, after a very brief illness. 
He is survived by his widow, Helen Cecelia Gerker Keilholtz, whom he married in January, 
1900, and by his daughter Cecelia; also by a sister, Mrs. Thompson, of Fanwood, N. J. 
ANDREW MACFARLANE 
MEMBER 
Mr. Macfarlane was born in Sunderland, England, on March 17, 1882. He served his 
engineering apprenticeship with William Doxford & Sons, Sunderland. After completing 
