Aerial photographs of the Holroyd plant were taken in July, 1951. The Holroyd Company was located at 5047 South Washington; they specialized in making concrete masonry units but also manufactured different types of building materials. They also dealt with sand and gravel and steel windows, according to an entry in the 1951 City Directory. Large lake pictured may have been used for manufacturing purposes.

Aerial photographs; Holroyd Co. (Tacoma); Concrete products industry--Tacoma--1950-1960; Building materials industry--Tacoma--1950-1960; Concrete--Tacoma;