A simple search of this e-text collection of fiction for "Texas" produced 420 hits, many merely one hit within the volume, some merely on the publisher's advertisement page of other titles.
Indiana University Digital Library Program describes the database as "This is a collection of 19th century American fiction, as listed in Lyle Wright's bibliography American Fiction, 1851-1875. There are currently 2,887 volumes included (1,763 unedited, 1,124 fully edited and encoded) by 1,456 authors. See this page for more information. Collection last updated on September 3, 2005. MARC Records are available for the entire collection."