On the official web site of the City of Frankfurt, the Initiative Stolpersteine presents a comprehensive documentation of the biographies and individual fates behind the stumbling blocks of Frankfurt. Many of the texts include historical documents and fotos from the legacy of the victims or their families.
In addition, every stumbling block’s location is documented, locatable in a city map, and there is a search function.
The documentation is only in German.
Link to the biographies on frankfurt.de