| Year | Change |
| 1917 | Dayton, Springfield and Xenia Southern abandons part of the Spring Valley branch from Beavertown to Spring Valley |
| 1918 | Cincinnati and Dayton Traction company abandons Miamisburg - Germantown line on December 12, 1918 |
| 1918 | Lebanon and Franklin Traction Company abandons operations on December 31, 1918 |
