The girl looks to be a year or two older than I am (I was 12 years old in 1977), and Cousin Oliver today is navigating his 30s. 

Of course, I shouldn't talk.....

Here is Your Webmaster in 1977.
(Orthodontists, you can stop drooling; the overbite is long gone)

The important thing is, we SURVIVED being kids in the 1970s.  Wish I could say the same for the hair.

More "Aye yi yi!", just in case you need some more.