International Association of Heat and Frost Insulators and Asbestos Workers Local 57 records, 1934-1955.

Maralf Company (Sioux City, Iowa)

http://n2t.net/ark:/99166/w6dg2wbc (corporateBody)

Vinatieu Plumbing and Heating Company.

http://n2t.net/ark:/99166/w60929sq (corporateBody)

International Association of Heat and Frost Insulators and Asbestos Workers. Local 57 (Sioux City, Iowa)

http://n2t.net/ark:/99166/w6b05910 (corporateBody)

Local 57 was organized in 1934. Members worked for a number of companies, including Johns-Manville, Midwest Insulation, Brum Company, Johnson Company, Maralf Company, and Vinatieu Plumbing and Heating. The Local covered workers in South Dakota, Minnesota and Iowa. The Building and Construction Trades Council was created in 1950. From the description of International Association of Heat and Frost Insulators and Asbestos Workers Local 57 records, 1934-1955. (Iowa Sate Historical Societ...

Brum Company (Sioux City, Iowa)

http://n2t.net/ark:/99166/w65b66sw (corporateBody)

Johns-Manville Corporation

http://n2t.net/ark:/99166/w61k35nq (corporateBody)

The H.W. Johns Manufacturing Company (New York, N.Y.) was founded in 1858 for the use of asbestos as a fire resistant roofing material. The Manville Covering Company (Milwaukee, Wis.) was founded in 1886 for the use of asbestos as a heat insulating material. They merged in 1901 to form the H.W. Johns-Manville Company (New York, N.Y.). The company was reincorporated as Johns-Manville Corporation in 1926, but was temporarily named Manville Corporation between 1981 and 1997. Now Johns-Manville, hea...

Building and Construction Trades Council of Sioux City.

http://n2t.net/ark:/99166/w6s52xff (corporateBody)

Johnson Company (Sioux City, Iowa)

http://n2t.net/ark:/99166/w62z79n0 (corporateBody)

Midwest Insulation Company.

http://n2t.net/ark:/99166/w6tr25k9 (corporateBody)

International Association of Heat and Frost Insulators and Asbestos Workers

http://n2t.net/ark:/99166/w6k98g75 (corporateBody)