These memorial stones (so called Stolpersteine of stumbling blocks) commemorate:
Charlotte-Margarete Alexander (born 1891, murdered in Chelmno in May 1942)
Lilli-Ruth Alexander (born 1927, murdered in Chelmno in May 1942)
Max Alexander (born 1879, murdered in Chelmno in May 1942)
Adolf Mayer (murdered in Lodz)
Ida Mayer (born 1879, murdered in Chelmno in May 1942)
Rudolf Mayer (born 1881, murdered in Chelmno in May 1942)
Alex Meyer-Wachmann (born 1881, murdered in Auschwitz)
The small copper plaques, in the pavement in front of houses of which the (mostly Jewish) residents were murdered by the Nazis, mention the name, date of birth and place (mostly a concentration camp) and date of death.
In many other cities, mainly in Germany but also in other European countries, the memorials also can be found. There are already many thousands of these plaques and their number is still counting. Almost all Stolpersteine are laid by the German artist himself, Gunter Demnig.
For more information and pictures, please visit Stolpersteine in Cologne (in German).
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