My father is deceased as is my mother. All his siblings are deceased.

I only have that one Johnson cousin (my dad's mother's side of the tree) who has a gedmatch kit. And that is pretty watered down as they are dad's maternal uncle's grandchild.

I don't have any close relatives on that side of the family who were willing to test.

I do have some ancestry matches on the known paternal (my dad's father's side) with gedmatch kits, but they are really distant cousins. And I was hoping to be able to create a Lazarus kit that would reflect the unknown Johnson side. Would it be beneficial to add those paternal gedkits?