Ford, Edison and Firestone at Warren G. Harding's funeral one week before U.P. trip

From left: Ford, Edison Firestone
This photo was taken in Marion, Ohio, the week before the 1923 camping trip began.
The trio is attending the funeral of their friend President Warren G. Harding.
President Harding had camped with Ford, Edison, and Firestone on their 1921 trip to Maryland.