Jacob Leonard Warner (1892 - 1978) MP

‹ Back to Warner surname

Is your surname Warner?

Research the Warner family

Jack "J.L." Warner's Geni Profile

Share your family tree and photos with the people you know and love

  • Build your family tree online
  • Share photos and videos
  • Smart Matching™ technology
  • Free!


Birthplace: London, ON, Canada
Death: Died in Hollywood, CA, USA
Managed by: Tina
Last Updated:
view all 16

Immediate Family

About Jacob Leonard Warner

Jack Leonard "J.L." Warner (born Jacob Warner) was the president and driving force behind the successful development of Warner Bros. Studios. Warner's 45-year career was lengthier than that of any other traditional Hollywood studio mogul.

As co-head of production at Warner Bros. Studios, he worked with his brother, Sam Warner, to procure the technology for the film industry's first talking picture. After Sam's death, Jack clashed with his surviving older brothers, Harry and Albert Warner. He assumed exclusive control of the film production company in the 1950s, when he secretly purchased his brothers' shares in the business after convincing them to participate in a joint sale of stocks.

view all

Jack "J.L." Warner's Timeline

August 2, 1892
London, ON, Canada
March 27, 1916
Age 23
Age 23
Age 42
Age 43
September 9, 1978
Age 86
Hollywood, CA, USA