| Title: | Thornton Telephone Directory |
| Publisher: | Southwestern Telegraph & Telephone Co./Southwestern Bell Telephone Co./Gulf States Telephone Co. |
| Type: | Telephone directory |
| Publication date: | |
|
Jun 1908 May 1915 Mar 1918 Jan 1924 Apr 1927 Jul 1930 Oct 1954 Oct 1956 Oct 1957 Oct 1958 Oct 1959 Dec 1960 | |
| Locations covered: | |
|
Thornton |