D. C. LaPlante (Sep 1886 -

Carl Krueger (Aug 1890-Feb 1893; Oct 1894-1932)
1927-1932: Krueger Studio, in partnership (?) with C. Everett DOZER

U. E. Wolcott (Apr 1891-Oct 1895)

Ben Kale (Feb 1893-Oct 1894)

J. J. O’Donnell (Oct 1895-May 1896)

F. N. Prosser (1904)

George L. Hanson (ca. 1912-ca. 1946) also Hanson Music House

Edward E. Horn (ca. 1912-ca. 1916)

Patrick Shaltry (1921-1927)

Johnson Studio Alex T. JOHNSON (1927-1931) WOODARD & Johnson, 1931

Holmboe Studio Frithjof & Thoralf (1936-1946)

Jensen-White Jerry Jensen & O. Milford White (1938- )

NAGOL Studio J. B. Messer (1941-1946)

Norman C. Ehlke (1944-

Kinney Studio Gaylord G. Kinney (1950~

Dubois Studio Elmer R . Dubois (1950~