Are some members of the Kennedy family burried there?

Yes

I've got awesome photos of JFK , Jacqueline and infant son with eternal flame but apparently can't show here

Yes, JFK, his wife Jacqueline, and two kids

I had the privilege to visit Arlington cemetery. Saw laying wreath at the unknown, changing of guards. We did stop at John Kennedy and his family. I knew Robert Kennedy was very close but we did not find it. There are so many graves, I read the names of some, Audie Murphy was one.

Robert and Ted also