Did McGovern win the youth vote?

[buritobr]

We can find the vote by age in Wikipedia only for the elections since 1976.

I have already read that Nixon targeted the vote of the young people. But concerning the vote of the 18-29 people since 1972, I could find only this article https://www.dailykos.com/stories/2016/11/11/1596789/-Estimates-put-youth-vote-turnout-at-50-percent-heavily-for-Clinton-except-among-whites
It shows that McGovern won the majority of the votes of 18-29 year old people.

Are these numbers correct? Do other sources show same numbers?
What about 1968?

[buritobr]

Even if there was a tie between Nixon and McGovern in the group of 18-29 people, there was a huge age gap, since Nixon won a 23 point margin.

In 1976, Ford won in the group of first time voters, but Carter did better in the group who voted for McGovern.