We have a fence around them now. Thanks for your help. As to the junipers, you can lightly prune them now. Make sure you leave green needle growth on every branch you prune. Coniferous evergreens differ from broad leaf plants, in that there are not any new growing buds on the old wood.
All new growth is generated from the branches with needles.
So don't prune hard. If you prune a branch back leaving no needle growth, you have a dead branch. The same principle applies to the White pine. You may want to limb them up to make them look more attractive, but never top a tree. Unfortunately, you won t see much new growth generated in the middle where the damage was.