He lived for only four years in the United States but he made important contributions on the culture of the St. Louis Jewish community to which he belonged.
At this time the family lived in Ward 1 of the City of St. Louis, close to the Mississippi River and south of the Eads Bridge.
[2] B'nai B'rith purchased a lot inside the city upon which it hoped to build a synagogue, but in October 1850, unable to pay the balance on the land, they returned it to the Benjamin Soulard estate.
Shortly thereafter, when Isidor Bush became president, new efforts resulted in successfully acquiring another plot of land on Jackson Street.
Bush then appealed for funds from the entire country by publishing in the Rabbi Isaac Leeser paper in Philadelphia an open letter asking for money for a building.
Daniel, along with Fred Wolff, F. L. Dattelzweig, L. R. Strauss, Bernard Singer and Julius Epstein were placed on a fund raising committee.
Later he was made a permanent Director along with Isidor Bush, William Walter, Alexander Suess, Bernard Singer, Isaac Lowman and Ludwig Schwartzkopf.
[3] Over four hundred people attended the ceremony [2] His first son-in-law was Louis Schwarzkopf, probably from Susice Bohemia, also a part of the founding group at B'nai-B'rith.