How did Albert Einstein's family escape Germany in time to come to America before the Holocaust?

from which part of Germany his family was from and when, how and why he left but more didnt come to the USA too before it was too late?

also, how he got into the secret military police afterwards to go after nazis hiding in Germany? is this true too?

please explain what you can

thanks for your answers!
Update: ALSO , HOW COMPARED TO HENRY KISSINGER? ANYTHING CAN TELL TOO ABOUT HIM AND HOW HIS FAMILY ESCAPED NAZI GERMANY IN TIME AND HOW HE BECAME HEAD OF THE MILITARY DIPLOMACY ETC? AND HOW ALBERT EINSTEIN BECAME A FAMOUS SCIENTIST?
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