John dyer is already connected to the global family tree, his profile shows the connection at the bottom.
Are you looking for contacts with other people related to this John dyer? If so you need to go to the profile and start by messaging the 2 profile managers and explore around your family tree for other profile managers.
Or if your asking if anyone can search the top person in your dyer tree to help you get back further, that profile is currently unsourced so needs info writing down of what's been checked so far but pre 1700 research is hard and slow and people who do it usually specialise in particular areas, so you need to look for a pre 1700 Virginia specialist. A lot of the early sources arnt online yet so you may need to research where the early Virginia records are held if they still exist.
You could add tags to your post of Virginia and pre-1700 to help find the right helpers.