Formidable barriers prevent low-income mothers from accessing evidence-based treatment for depressive symptoms that compromise their ability to provide sensitive, responsive parenting for their infant or toddler. Interpersonal psychotherapy (IPT), an evidence-based psychotherapy for depression, was tailored for in-home delivery to mothers navigating economic hardship and other intense stressors, and for Latina mothers with limited English language proficiency. Psychiatric-mental health nurses delivered the adapted IPT in randomized clinical trials that were conducted in partnership with Early Head Start (EHS). The authors discuss the results of these studies and the impacts on EHS staff members and programs, and they provide additional implications for current early childhood-focused programs. (author abstract)