Introduction -- Sociohistorical context. German immigration to Texas ; New Braunfels 1845/2000 ; Diglossia ; The founding period 1845/50 : diglossia or standard-with-dialect? ; German langauge domains 1850/90 -- German langauge domains 1890/1920 ; German language domains 1920/60 : diglossia English/Texas German ; German language domains 1960/2000 : language Shift ; Texas German in the Twenty-First Century -- Dialect contact and new-dialect formation. German Sprachinseln around the world ; Koineization : and new-dialect formation ; Donor dialects of Texas German ; Setting the stage for determining dialect-specific features in Texas German -- Developments in Texas German phonology. Development of the vowel system ; Consonants ; Other phonological developments ; Evaluation of phonological data -- Morphosyntactic developments in Texas German. Case in German ; Word order ; Loss of preterite ; Number ; Gender -- Language death and language maintenance. Language death ; Why is Texas German dying? ; Language attitudes and language maintenance.