The Halladay Motor Car company was founded in 1905 in Streator, Illinois, and moved to Ohio in 1917.
[1] In 1917, the group of investors kept making the Halladay, now in Warren, Ohio.
They changed the name to Halladay Motor Car Company.
[3] In 1920, the company was moved to Newark, Ohio, where the name was changed to Halladay Motors Corporation.
This was because of charges from the Barber Asphalt Paving Company of Pennsylvania, which had not been paid for work done around the Newark plant.