Background
Mack, John M. was born on August 15, 1852 in Philadelphia, Pennsylvania, United States. Son of John and Mary Mack.
Mack, John M. was born on August 15, 1852 in Philadelphia, Pennsylvania, United States. Son of John and Mary Mack.
Educational public schools.
Began business as contractor, 1876, founded and managed Mack Paving Company, Pennsylvania Asphalt Company, and Southern Electrical Light & Power Company, and Mack Manufacturing Company, of Pittsburgh. Reorganized the various asphalt companies into Asphalt Company of America.
Arranged the merging of the entire street railway system of Philadelphia into one company.
Was president and director Barber Asphalt Paving Company, General Asphalt Company, Uintah Railroad Company, and director in various other companies.