The goal of this study was to illuminate areas of strength within a sample of Hispanic, Spanish-speaking children (n = 446) from the early head start research and evaluation project, a multi method, multi reporter longitudinal study that involved children starting at 14-months through pre-kindergarten, with a 5th grade follow up assessment. A longitudinal path model examined relations between external factors (i.e., parent warmth and responsivity, home cognitive and language environment, child-directed speech), and internal factors (i.e., child self-regulation), and Spanish language before kindergarten, and English language at 5th grade. In addition to direct paths, indirect paths were included from external factors to language outcomes through self-regulation and Spanish language. After controlling for important demographic variables, analyses indicated that parents’ warmth and responsivity was directly related to children’s self-regulation and children’s English language proficiency in 5th grade. Home environment and self-regulation were directly related to children’s Spanish language proficiency. Children’s Spanish language proficiency was directly related to English language proficiency. Significant indirect effects emerged between parent warmth and responsivity to both Spanish and English language via children’s self-regulation. Results additionally evidenced significant indirect paths from home environment and self-regulation to English language through Spanish language. Direct paths between parent warmth/responsivity and Spanish language, home environment and English language, and child-directed speech and child regulation, Spanish language, and English language were not significant. Implications include current and future interventions targeted at bolstering parent-child interactions and regulation skills and to promote early educational programs supportive of both heritage and second languages.