Theresienstadt - Prisoner Numbersh

No, they did not have numbers at Theresienstadt. Only at Auschwitz.

You can look for info by name here:
http://www.holocaust.cz/en/victims/

You can send a request for information to the Israeli Theresienstadt Museum via this link:
http://www.bterezin.org.il/site/form/showform.asp?form_id=148097
Not everywhere and not in all circumstances tattoos were used.
But every prisoner, deportee, slave-worker, concentration-inmate had a number in the administration of the system. Every deportation transport had a number and each deportee had a transportation number.
HTH

Thanks everyone - I was able to get additional information from the Theresienstadt Museum.

PS - Kack - looks like we're loosely related

Jack Marcel Klaber is your fourth cousin once removed's wife's sister's husband's second great nephew's wife's father