I have found a Johann Büllesbach (Buellesbach, Umlaut: "two dots" over the u). "John" emigrated 1853 presumably from the port of Antwerp in Belgium. John came from the village of "Weldergoven". Weldergoven is an part of the city of "Hennef". The city of Hennef at the "Sieg" river is located some miles south of the city of Cologne. One year before emigrated 1852 a family Büllesbach with 5 persons from the neighboring city Herresbach. Probably relationship of John?
I hope this is helpful?