This volume provides a comprehensive overview of contemporary language shift and identity in a language community in the mid-Atlantic South to offer a unique window into ethnic dialect formation and sociolinguistic processes underpinning dialect acquisition. Drawing on data collected from over 100 interviews of members North Carolina Hispanicized English speakers in Durham, North Carolina, the book employs a quantitative approach and uses statistical software in analyzing the data collected to focus on the sociolinguistic variable of past tense unmarking to explore sociolinguistic processes at work in English language learner variation. The focus on a specific variable allows for the opportunity to explore specific processes in more detail, including the ways in which speakers accommodate regional and ethnic varieties of their peers and the internal and environmental factors guiding dialect acquisition. Illuminating new facets to the processes of language learning, language contact, and ethnolect emergence, this volume is key reading for students and researchers in second language acquisition and variationist sociolinguistics.