The business is permanently closed.
Founded in 1935 by Herbert J. Grassold and Elmer A. Johnson. According to a Milwaukee Sentinel report, it was the largest architecture firm in the state in the 1960s and ultimately designed more than 2,000 buildings.
Also known as Grassold, Johnson & Associates, Grassold, Johnson, Wagner & Isley, Johnson, Wagner, Isley, Widen & Hipp and Johnson & Widen. Elmer A. Johnson’s son E. William Johnson ultimately dissolved the firm in 1985 and launched E. William Johnson & Associates, later Johnson & Doll Architects.
- 1320 E. Oklahoma Ave. (YMCA branch)
- 1635 W. National Ave. (addition)
- 1659 N. Jackson St.
- 1710 S. Kinnickinnic Ave. (MCTS Kinnickinnic Facility)
- 2617 W. Fond du Lac Ave. (addition)
- 2964 N. 81st St. (Eighty-First Street School)
- 3300 S. 39th St. (John Audubon Junior High School)
- 3419 W. Wisconsin Ave. (car dealership, demolished)
- 420 S. 1st St. (International Harvester Sales Center)
- 4601 N. 84th St. (Samuel Morse Junior High School)
- 4950 N. 24th St. (Twenty-Fourth Street School)
- 720 W. State St. (Milwaukee Area Technical College Student Center)
- 740 N. Broadway (AT&T Annex)
- 770 North (M&I Bank Building)
- 8135 W. Florist Ave. (James Madison High School)
- 8400 W. Burleigh St. (Wilbur Wright Junior High School)
- 915 W. Wisconsin Ave. (Central YMCA)
- Finney Library
- Milwaukee County Stadium
- Milwaukee Mall (addition)
- Northwestern National Insurance Company Building (addition)
- South Division High School (1321 W. Lapham Blvd.)
- Varsity Theatre (Holthusen Hall)
List is incomplete