Please give more information -
Otherwise it is like looking for a needle in a haystack.
Why do you think he came from Saxony?
Is there a written document for this? If yes where? online ?
Did someone just tell you?
What else do you know about him?
Do you know the names of his parents ?
Did Karl emigrate to America?
Have you checked all possible passenger lists around that time ?
Is his name on a passenger list?
If so, what year did he come to America?
From when do Ihe first documents of him exist in America?
Can written documents be viewed online?
Where? A link ?
BR.