Encyclopedia Dubuque
"Encyclopedia Dubuque is the online authority for all things Dubuque, written by the people who know the city best.”
Marshall Cohen—researcher and producer, CNN
Affiliated with the Local History Network of the State Historical Society of Iowa, and the Iowa Museum Association.
OPERATING ENGINEERS LOCAL NO. 301
OPERATING ENGINEERS LOCAL NO. 301. The International Union of Operating Engineers represents heavy equipment operators, mechanics and surveyors in the construction industry, as well as operations and maintenance workers in building and industrial complexes. The union has more than 400,000 members and is one of the largest unions affiliated with the AFL-CIO. (1)
The 1948 Dubuque Classified Business Directory listed 1398 Central.
The 1951 Dubuque City Directory listed the third floor of the Dubuque Bank Building.
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Source:
1. "Operating Engineers Union," Online: https://www.opensecrets.org/orgs/summary.php?id=D000000139