I may have found the source of the Housen name.Google search the name "Freeling Housen" of N.J.(also spelled Freelinghuysen - 1 word) a minister.This could explain all the Housen/Howson names that appear to be unrelated. This may also indicate John H Bush's family religion or migration patterns form the N.E.
Theodorus Jacobus Frelinghuysen (1692 – circa 1747) was a German-American Dutch-Reformed minister, theologian and the progenitor of the Frelinghuysen family in the United States of America. Frelinghuysen is most remembered for his religious contributions in the Raritan Valley during the beginnings of the First Great Awakening. Several of his descendants became influential theologians and politicians throughout American history.