Information: Wikipedia

A Stolperstein literally "stumbling stone", metaphorically a "stumbling block" is a sett-size, 10 by 10 centimetres (3.9 in × 3.9 in) concrete cube bearing a brass plate inscribed with the name and life dates of victims of Nazi extermination or persecution.

The Stolpersteine project, initiated by the German artist Gunter Demnig in 1992, aims to commemorate individuals at exactly the last place of residency—or, sometimes, work—which was freely chosen by the person before he or she fell victim to Nazi terror, euthanasia, eugenics, was deported to a concentration or extermination camp, or escaped persecution by emigration or suicide. As of 29 March 2018, over 67,000 Stolpersteine have been laid in 22 countries, making the Stolpersteine project the world's largest decentralized memorial.

The majority of Stolpersteine commemorate Jewish victims of the Holocaust. Others have been placed for Sinti and Romani people (then also called "gypsies"), homosexuals, the physically or mentally disabled, Jehovah's Witnesses, black people, members of the Communist Party, the Social Democratic Party, and the anti-Nazi Resistance, the Christian opposition (both Protestants and Catholics), and Freemasons, along with International Brigade soldiers in the Spanish Civil War, military deserters, conscientious objectors, escape helpers, capitulators, "habitual criminals", looters, and others charged with treason, military disobedience, or undermining the Nazi military, as well as Allied soldiers.

Isaac Engers was born in Amsterdam on December 31, 1886. He was the third child and eldest son of Meijer Engels (born Aarlanderveen March 26, 1856 – died Amsterdam February 1, 1938) and Betje Plukker (born Amsterdam November 8 – buried in Diemen July 11 1923). He grew up in Amsterdam with his two brothers and seven sisters.

As a peddler in gallantries, he wandered from one city to another. In 1931 he lived in Eindhoven, from there he left for The Hague, where he lived for several years at Kleine Kade 29. In October 1939 he moved to Zeeland. First to Goes, then in September 1940 to Terneuzen. In 1941 his home address was Nieuwediepstraat 101.  Like the other Jews, he was forced to leave Terneuzen on March 24, 1942. Six months later Isaac Engers died in Auschwitz on September 30, 1942.

Izaak Fonteijn was born on October 10, 1880 in Terneuzen, the son of Karel Fonteijn and Naatje Blok.  Izaak married 25-year-old Julia Berendsen on 22 June 1910 in Wisch (Gld.). Twenty-three years later he remarried in 1933 at the age of 52 in The Hague to the 40-year-old housekeeper Johanna Koppel, born in Zutphen on 7 April 1893.

Izaak had taken over the drapery business from his father in Terneuzen and business was going well. Ten years later, the German occupation had changed life drastically. Dutifully, Izaak Fonteijn handed in his radio set in April 1941, after the Department of Justice had ordered the confiscation of all radio receivers in the possession of Jews. On April 30, 1942, his abandoned rental home at 22 Van Steenbergenlaan was evicted by the police and the belongings left behind were stowed in a ship. Shortly before this, Isaak and Johanna had been forced to leave for Amsterdam. On 14 January 1943 they arrived in Westerbork, on 23 February they were both deported to Auschwitz, where they died on arrival.

Abraham Walg was born in Bergen op Zoom on August 16, 1905 as the son of Marcus Joseph Walg and Debora Polak. On December 14, 1933, he married 25-year-old Ester Cracau from Vlissingen. Ester was the daughter of Victor Cracau and Engeltje Frank.

The young couple settled in Goes, where Abraham earned a living as a merchant in draperies. Ester soon became pregnant and on October 16, 1934, their eldest son Victor was born. A year later, a second son, Marcus, followed on October 11, 1935. Two weeks after Marcus was born, the Middelburg court declared Abraham Walg, a manufacturer in Goes, living at 12 Papegaaistraat, bankrupt.

The Walg family then moved to Kloetinge. A year later, after the bankruptcy had ended without any payment to the creditors, they left for Vlissingen. Their third son Aaron was born there on January 3, 1937. In October of the same year, Abraham Walg and his family had settled in Sas van Gent. From there it went to Terneuzen in January 1939 at 50 Van Steenbergenlaan. Their last son Jacques was born here on October 24, 1939.

On March 24, 1942, Abraham and Ester were forced to vacate this house. Together with their children they had to leave Zeeland and move to Amsterdam. Ester and her children died on September 7, 1942 in Auschwitz, Abraham died two years later in February 1944. Their home at 50 Van Steenbergenlaan was demolished in 1973.