When the germans in September 1942 began deporting Jews from Czestochowa’s ghetto to Treblinka, Jews tried to escape or hide, some succeeded but most were found and deported. One who succeeded was Hersh Frajman who lived in a house close to the town square (current old square). He built two hidden rooms in the basement where he managed to hide 27 family members. Hersh spent most of his time trying to find food and other supplies for the family members. After 23 days, and during the time the great ghetto was emptied of Jews, Hersh managed to move all family members to the new little ghetto. This was a ghetto for the Jews that the germans needed for slave labor. Of the 27 family members Hersh helped, 23 surviving the war. Hersh himself and his wife were murdered during a round-up conducted by the Germans on 4-5 January, 1943.
Current status: Preserved with memorial tablet (2023).
Location: 50°48' 42.67" N 19°07' 47.03" E
Get there: Walk from central Czestochowa.
Follow up in books: Gilberg, Martin: Holocaust: A History of the Jews of Europe During the Second World War (1987).
The house remains and on the facade there is a memorial tablet. If the basement and the hidden rooms remain I don’t know. The basement is probably still there but I doubt the hidden rooms still exists.