Lewis Gerstle: Jewish Pioneer of the Alaska Commercial Company and San Francisco Benefactor


Lewis Gerstle

Lewis Gerstle of the Alaska Commercial Co.

Lewis Gerstle of the Alaska Commercial Co.

Value Codes:  I – H – E – L – P

“In the galaxy of men who have made the foundations of the San Francisco community strong and enduring, the name of Lewis Gerstle occupies a foremost place” –Martin Meyer, 1916

Lewis Gerstle was born in Ichenhausen, Bavaria in 1824.


Along the way

At the age of 21, Lewis Gerstle came to the United States and settled in Louisville, Kentucky, where he worked for his brother.

While in Louisville, Lewis Gerstle mastered the English language – both in speaking and writing.

Five years later he came to California, by way of the Isthmus, working as a cabin boy to pay his fare.

Arriving in California, Lewis Gerstle first settled in the Sacramento area, conducting a grocery business in partnership with Louis Sloss and Simon Greenwald.


San Francisco

In 1860, Lewis Gerstle moved to San Francisco and went into the stock brokerage business with Louis Sloss.

In 1868, they obtained the “Alaska Lease” –the first Alaska fur concession, and also the first Russian fur contract.

Their furs were shipped to England and other large trade centers of the world.


Next came  the founding of the Alaska Commercial Company, of which Gerstle was one of the founders and the first president.

Alaska Commercial Logo

The United States Government gave to the company an exclusive concession, for twenty years, for the taking of the fur bearing seal from the Pribilof Islands and the  Aleutian Islands.

Seals on Pribilof Islands, Vintage Postcard

Seals on Pribilof Islands, Vintage Postcard

In return, the Alaska Commercial Co. established trading posts, schools, churches, and developed the region towards a higher level of civilization.

This required the capital, enterprise, business and executive ability of Lewis Gerstle, Louis Sloss, and their associates.

They created programs that made the territory more valuable at the end of their lease term than when they began.

At the end of the twenty year period there were more seals on the island than at the beginning.

Alaska Commercial Building in San Francisco.

Alaska Commercial Building in San Francisco.

Lewis Gerstle was also a Director of the Union Trust Company.



Lewis Gerstle was a member of the San Francisco Vigilance Committee.



Lewis Gerstle was a behind-the-scene champion of many Jewish charity organizations such as the Emanu-El Sisterhood Charity Committee and the Orphans’ and Old Peoples’ Home – to name but a few.



In 1858, Lewis Gerstle married Miss Hannah Greenbaum, whose sister was the wife of his partner, Louis Sloss.

Together, Lewis and Hannah Gerstle had the following children: Sophia Lilienthal, Clara, Bertha, Mark L., William, Alice, and Belle.


Lewis Gerstle died in 1902.

Note: If you came to this San Francisco Exhibit by way of the Alaska Exhibition Hall and want to continue with Alaska, you will have to return to the Alaska Exhibition Hall. (Click on this))



  • The Jews of San Francisco, by Martin A. Meyer, Ph.D., Emanu-El, San Francisco, June 1916.
  • Visions of Reform, Congregation Emanu-El and the Jews of San Francisco, 1849- – 1999, Fred Rosenbaum, Judah L. Magnus Museum, Berkeley, CA, 2000.

David Epstein is the Curator for this Lewis Gerstle Exhibit

Other family information and pictures would be greatly appreciated.