Which generational groups were born during the Vietnam War years?

In the US, the generation can be segmented into two broadly defined cohorts: the "Leading-Edge Baby Boomers" are individuals born between 1946 and 1955, those who came of age during the Vietnam War era. This group represents slightly more than half of the generation, or roughly 38,002,000 people of all races

The groups were baby boomers, beatniks, hippies, and a bit later generation x