Hello Teri,
I took your family on our page www.auswanderer-oldenburg.de. Now you can find there your Henry Heitmann with his parents, two siblings, his wife and daughter. If you hav more informations about Henry's children I would take it for our page.
If you want to make a trip to Löningen you can look at the page www.loeningen.de.
Best regards,
Gunter