When I first became aware of the term "baby boomers" it meant children of the end of the war and the war effort. Children born in the '40s and early '50s of parents who were part of winning the war, during the time after the war when there was an unspoken but understood overall unification of society.
Now I see it as including people who got their 1-12 education finished before Lindon Johnson's "great society" programs started corrupting education with federal money and the college educated "teachers" (ironically initially boomers themselves but led off the rails in 'higher education' by socialist professors) began corrupting students minds with the Faustian Socialist Marxist agenda.
In my opinion, there is a distinct difference in the character and nature of people who graduated from 1-12 and "teen age" in the early '60s and those whose minds were influenced by the marxist/socialist agenda that polluted education (and everything else they touched) after the agenda of Johnson and the progressive democrats took effect in the mid '60s.