Is it possible to have V1 greater then Vr?
I think the answer is no.

If you think about V1 as primarily based on runway length, it is certainly possible for an aircraft to easily reach Vr long before reaching the "point of no return" as far as stopping distance is concerned.

However, you must also consider the meaning of Vr. This is when the aircraft is going to rotate. After rotation and leaving the ground, the distance required to still stop on that same runway increases significantly.  For this reason, maximum V1 is generally considered to be Vr (see this discussion).

In large aircraft, rejecting a takeoff after leaving the ground is generally discouraged, unless the pilot feels that the plane could be uncontrollable. It's much safer to continue the takeoff and fly for a normal approach. However, it can happen.

In smaller aircraft, it's more reasonable for the aircraft to take off and then land safely (I'm thinking a C172 on one of the low density altitude runways you linked to).