Yes, the character of Hubbell died in the first episode (Pilot) in a car crash. Depending on the sources, some sites do have Hubbell listed as a recurring character, but he's not included on the show's IMDb page.
Levi Hubbell died in 1876.
Harvey Hubbell died in 1927.
John H. Hubbell died in 2007.
Edwin Hubbell Chapin died in 1880.
Bill Hubbell died on 1980-08-03.
Jay Abel Hubbell died in 1900.
William Spring Hubbell died in 1873.
John Raymond Hubbell died in 1954.
Don Lorenzo Hubbell died in 1930.
William Stone Hubbell died on 1930-08-28.
James Randolph Hubbell died on 1890-11-26.
Carl Hubbell died on November 21, 1988 at the age of 85.