Union Litho. Co. (Calif.)

found: Last, J. Color Explosion ... 2005:page 235 (Union Lithograph Co. San Francisco 1888-1922; Jennison Hall, who had been a lithographer in Providence, Rhode Island, established J.C. Hall & Company in San Francisco in 1888, changing the name to the Union Lithograph Company in 1890; plant destroyed in the April 1906 earthquake; the firm then bought the Los Angeles Lithographic Company to continue in business and was in turn purchased by H.S. Crocker & Company in 1922; Union name continued to be used until 1936)

found: McClelland, G. California Orange Box Labels .. 1995:page 114 (Crocker and Union formally combined to form Crocker-Union in 1936 and then readopted the the original H.S. Crocker name in 1946) page 116 (Crocker-Union San Francisco)