I found the baptism records for the children of Jonas Streb and Afra Blum! The info was recorded in the parish records of the Catholic church in Horden, Baden, Germany.
I think all the more that your Streb is related to the other Strebs especially since Jonas had his children baptized in Horden though they were born in Allensbach. Jonas is a contemporary of my Jacob Streb. They came to Rochester within a close time frame.
About the 2 of 5 children surviving for Jonas and Afra - my Jacob had 4 of 8 survive childhood, only 2 went on to have descendants.