Very interesting article, at least personally interesting.
The first in my family to arrive in America was in 1626 to Virginia Colony. The written record shows 'P' next to his name on this ship's manifest. My understanding is that the 'P' stood for, "Prisoner of the Crown". I assumed, but could never find any documentation, that his passage was paid in lieu of indentured servitude.
I guess that is true that the Plymouth Plantation and Jamestown are both earlier socialist settlements. But Robert Owen of New Harmony was one of the main influences on Friedrich Engels. Engels attended a church that followers of Owen had in England. Engels became enamored with socialism.
He later critiqued the utopian socialists when he met Karl Marx and they began to create the blueprint for Marxism. But Robert Owen can be credited as being influence on the creation of modern communism.