OBITUARY. 275 
FREDERICK METCALF 
MEMBER 
Mr. Metcalf was born in Providence, R.I., January 31, 1886. He graduated in 1890 
from the Massachusetts Institute of Technology, in mechanical engineering. After gradua- 
tion he was employed by the Rodney Hunt Machine Company, at Orange, Mass., builders of 
turbine water wheels. In 1892 he entered the employ of the American Ship Windlass Com- 
pany, Providence, R. I., and was successively chief draughtsman, superintendent and treas- 
urer. In 1898 he moved to Cleveland, where he became treasurer of the Chase Machine 
Company and vice-president of the Madison Foundry Company. 
During the World War Mr. Metcalf was accorded signal appreciation by the British 
Admiralty for permitting the use of the winches of his company in boom defenses against 
submarines. Several thousand were used, for which the company asked and received but a 
nominal royalty. 
Mr. Metcalf was a quiet and unassuming man, who was held in the highest esteem by 
all whose privilege it was to know him, for his integrity, kindness and strength of character. 
He became a member of the Society in 1909 and died December 8, 1922. 
MARK RICHARDS MUCKLE, JR. 
MEMBER 
Mr. Muckle was born on March 3, 1857, in Philadelphia, and was educated in private 
schools of that city. He served his apprenticeship with Wm. Sellers & Co., and later was a 
member of the firm of Ferrell & Muckle, machine designers and pump manufacturers. In 
1912 he became head of the M. R. Muckle, Jr., & Co., consulting and contracting engineers. 
Mr. Muckle was a charter member of this Society. He died May 19, 1922. 
SAMUEL LEON NAPHTALY 
MEMBER 
Mr. Naphtaly was born in San Francisco, November 20, 1874. He was educated in the 
public schools of San Francisco and the University of California. 
After leaving the university he entered the service of various gas, light and power com- 
panies operating in San Francisco and during his time was engineer of some of California’s 
principal electrical projects. 
At the time of the San Francisco fire in 1906 he was general manager of the San Fran- 
cisco Gas and Electric Company, and in the chaos that followed the fire, with all the wires 
down and with the generating plants destroyed, he performed a great feat of business reor- 
ganization when he hastily organized his workers and reopened the plants, repaired the lines 
and brought light and power again into the city. 
In 1907 he became general manager of the City Electric Company, which capacity he 
