Are Levi Strauss and Joseph Strauss related?

Not at all

Levi Strauss: born Löb Strauß, (German) on February 26, 1829 – September 26, 1902) was a German-American businessman who found the first company to manufacture blue jeans. His firm of Levi Strauss & Co. began in 1853 in San Francisco, California. He was born to an Ashkenazi Jewish family in Buttenheim on February 26, 1829 in the Franconia region of the Kingdom of Bavaria in the German Confederation. Levi S died on September 26, 1902 and was buried in the Home of Peace Cemetery and Emanu-El Mausoleum in Colma, California. Joseph Baermann Strauss (January 9, 1870 – May 16, 1938) was an American structural engineer of German descent, who revolutionized the design of bascule bridges. He was the chief engineer of the Golden Gate Bridge. Born in Cincinnati, Ohio, to an artistic family of Jewish German ancestry. He died in Los Angeles, California, just one year after the Golden Gate's completion. His statue can be seen on the San Francisco side of the bridge. Ref : Wikipedia