| Office1: | Louisiana House of Representatives |
| Term Start1: | 1871 |
| Term End1: | 1880 |
| Office2: | Louisiana Senate |
| Term Start2: | 1880 |
| Term End2: | 1884 |
| Office3: | Louisiana House of Representatives |
| Term Start3: | 1884 |
| Term End3: | 1896 |
| Party: | Republican |
James. S. Davidson was a Reconstruction era politician who served in the Louisiana House of Representatives and the Louisiana Senate.[1]
Davidson was first elected to represent Iberville Parish, Louisiana in the Louisiana House of Representatives from 1871 until 1880.[2] He then served in the Louisiana Senate from 1880 until 1884 before returning to the house to serve from 1884 until 1892.
Davidson was a delegate to the 1876 Republican State Convention representing Iberville Parish, Louisiana.[3] Next he was a delegate to the 1879 Louisiana Constitutional Convention. He was also a delegate to the Congressional Convention May 1880 in New Orleans where he was appointed to be a member of the District Committee representing Iberville Parish along with J. W. A. Verrett.[4]
He also was a U.S. warehouse keeper after the reconstruction era.