Wikipedia:Articles for deletion/Curtis Bros. & Co
Using an internet search engine created over 40 years after a company closed is the incorrect method of determining notabilty of such company.  That said, even with the dubious availability of hyperlinks, internet research shows it was the subject of multiple non-trivial published works, one from a newspaper when the business closed in the 1960's http://www.rootsweb.com/~iaclinto/people/outlines/prom/curtis_sash.htm and one from a historical book. http://freepages.books.rootsweb.com/~cooverfamily/siouxcity/sioux_20.htm.  (both inserted into article).  These are additional to the work ''History of the Lumber and Forest Industry of the Northwest'' already supplied by an article editor.  Passes the criteria of 
— User:Oakshade, 22:22, 1 February 2007 (UTC)
Stance: keep
Cited policy: WP:CORP (Wikipedia:Notability)