For whom the town was named, Jennings McComb was an Irish contractor for the Southern Pacific Railroad. He built the Jennings depot on a divide peculiar to the southwest Louisiana. This became the center of new development based on the railroad. The first settler was recorded as A. D. McFarlain, who came in 1881 from St. Mary Parish and opened a store. McFarlain also became the first rice grower, postmaster, brickmaker, and builder in the community. Prospering with Jennings’ growth, McFarlain was considered one of the town's prominent businessmen and civic leaders.
The Jennings area attracted numerous wheat farmers from Iowa, Kansas, Nebraska, and other Midwestern states. The new settlers of southwest Louisiana were referred to as "Yankees" by the natives, who were of Acadian French and African-American descent. They had settled along the waterways in the parish, which they had relied on for transportation before the railroad. They fished in the bayous. The Cajuns gave appreciable aid to the settlers in homesteading and homemaking. The people grew rice, cotton, sweet potatoes, and corn.[5]
Sylvester L. Cary reached this area on February 7, 1883, from Iowa. He became known as the town's "father," as he persuaded other Iowans to relocate there. He said he was "seeking a home where there was neither winter nor mortgages."[5] So impressed was Cary by the fertile country around the Jennings depot that he shared his findings with others. He attracted fellow Midwesterners to southwest Louisiana by writing to friends in Iowa, extolling the area. When he returned to Iowa to pack up his family for the move to Jennings, he persuaded several neighbors preparing to migrate west, to follow him to Jennings and southwest Louisiana.[5]
Much of southwest Louisiana was developed by the North American Land and Timber Co., which owned large portions of land. Seaman A. Knapp, president of the Iowa State College of Agriculture, was engaged in 1885 to demonstrate the region's suitability for rice production. Knapp attracted a number of Iowans to settle the area.[6] The land company placed advertisements in newspapers published in the Midwestern states.
On May 2, 1888, the settlement of Jennings was incorporated as a village. In 1901, a fire destroyed a large portion of the wooden structures in Jennings.[5]
That same year, Jennings was the site of the first oil well to produce in Louisiana, revealing its first oil field. Oil brought a boom to the town for a period. When oil production declined, the basic agricultural economy of the parish supported the town.[5]
According to the United States Census Bureau, the city has a total area of 10.3 square miles (27 km2), of which 10.2 square miles (26 km2) is land and 0.04 square miles (0.10 km2) (0.19%) is water.
Climate
The climate in this area is characterized by hot, humid summers and generally mild to cool winters. According to the Köppen Climate Classification system, Jennings has a humid subtropical climate, abbreviated "Cfa" on climate maps.[9]
Climate data for Jennings, Louisiana (1991–2020 normals, extremes 1897–present)
W. Scott Heywood (1872–1950), member of the Louisiana State Senate from 1932–1936, author of homestead exemption; discovered oil in Jeff Davis Parish in 1901
^"Station: Jennings, LA". U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991-2020). National Oceanic and Atmospheric Administration. Retrieved August 27, 2021.
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