Final answer:
The cofounder of the Head Start program is not explicitly named in the provided historical context, as the program's creation involved the efforts of the federal government and various activists and reformers.
Step-by-step explanation:
The cofounder of the federal Head Start program, which was developed to help low-income students overcome preschool deficits that were highlighted in the Coleman Report, is not explicitly named in the historical context provided. The program was a component of President Lyndon Johnson's War on Poverty and was initiated alongside the 1965 Elementary and Secondary Education Act (ESEA). Supporters of Head Start, like civil rights icon and community organizer Ella Baker, believed in empowering the poor and oppressed through education and societal change. Although many individuals were involved in advocating for and establishing Head Start, no single cofounder is mentioned in relation to the creation of the program. Instead, the federal government's role, with collaboration from activists and reformers, was crucial in Head Start's inception.