The brothers names that I know of were, John Dettero, Johann Dotterer, and Balzar Duderow. From research I have done John and Johann were NOT the same person, they were indeed brothers, the interesting thing is - they both had sons named Michael Tetherow/Totherow/Dettero/Dudrow/Dudderow and so on, different records and census' show many variations on names they went by. David Tetherow is my ggg grandfather, his son Solomon Southwood Tetherow is my gg grandfather, his daughter Edna Alice Tetherow Reeder is my g grandmother, her daughter Phobe Esta Reeder Smith is my grandmother.
I am still searching, hoping one day it will all come together, its alot of fun! Kinda like searching for hidden treasures! ^_^*