Louis Braverman was the father-in-law of the brother of my second great aunt, Klara Kahn (Gundelfinger). Klara came to San Francisco in 1938 with her son and 2 grandsons and settled in Fresno, where her brother, Louis Gundelfinger had settled in 1877. Louis Gundelfinger's wife Dora Gundelfinger (Braverman) was the daughter of Louis Braverman.
Louis Braverman's wife, Fanny Braverman (Wormser) had a sister named Babette Einstein (Wormser). Babette's son, Louis Einstein, was Louis Gundelfinger's business partner in Fresno, first in a stock and development firm, Silverman, Einstein, and Company.
During his 55 years in Fresno, Louis Gundelfinger was active in the Fresno Chamber of Commerce and ran a bank with Louis Einstein. Both Einstein and Gundelfinger lived in prominent mansions in Fresno that were designed by a Harvard-trained architect and are today considered historic homes in the community.
During his San Francisco years, prior to Fresno, between 1868 and 1877, Gundelfinger was a bookkeeper for his father's Wormser wholesale liquor establishment and subsequently served as bookkeeper for Greenebaum's wholesale clothing establishment and then the Levi Strauss Company, a wholesale dry-goods firm.
Louis Gundelfinger and his sister Klara Kahn (Gundelfinger) also had two other siblings who lived in Fresno. Leopold Gundelfinger was the first of the siblings to arrive in Fresno in the early 1860's, and he served as the community's volunteer fire chief. Herbert Gundelfinger was another brother who Immigrated to Fresno from Michelbach in Baden Wurttemberg, Germany.
Klara Kahn's husband Jonas Kahn was a brother of my great grandmother, Flora Harburger (Kahn), who lived in Krumbach and subsequently Munich, Germany. I don't know any more about Louis Braverman other than what you mentioned, except that he was married to Fanny. The Wormser family can be traced back in time on geni.com. They share family ties to the famous Guggenheim family of Germany that ultimately became one of the United States' wealthiest families in the 1920's and with whom New York's Guggenheim Museum and the Peggy Guggenheim Art Museums in Barcelona, Spain and Italy are associated.