Well, to make a long story short, Levi Strauss was Jewish!
Since Levi Strauss's mother was Jewish, and in Orthodox Judaism and Conservative Judaism, those with a Jewish mother (or those who underwent a halakhic conversion) are considered Jewish, then that makes him Jewish. His father was Jewish too.
Levi Strauss was born on February 26, 1829 in Buttenheim, Germany. Levi Strauss passed away on September 26, 1902 (aged 73).
He founded the first company to manufacture blue jeans. His firm, Levi Strauss & Co., began in 1853 in San Francisco, California.
If you see any details that require update, please Let us know!