Josiah Gregg

Josiah Gregg was born on July 19, 1806, in Overton County, Tennessee, the youngest son of seven children of Harmon and Susannah (Smelser) Gregg. Six years later his family moved to Howard County, Missouri. By 1840, Gregg had learned Spanish, crossed the plains between Missouri and Santa Fe four times, traveled the Chihuahua Trail into Mexico, and become a successful businessman. Only a few months later, he traveled through the Oklahoma Territory as far west as Cache Creek in the Comanche territory. ==Commerce of the Prairies==

Gregg's book Commerce of the Prairies, published in two volumes in 1844, is an account of his time spent as a trader on the Santa Fe Trail from 1831 to 1840 and includes commentary on the geography, botany, geology, and culture of New Mexico. Gregg wrote about local people and described Indian culture and artifacts. The book was an immediate success and established Gregg's literary reputation. It went through several editions, sold a large number in England, and was translated into French and German. The map he produced of the Santa Fe Trail and surrounding plains was the most detailed up to that time, and his suggestions of where the Red River headwaters might be found inspired the journey of Randolph B. Marcy and George B. McClellan in 1852. ==Mexican–American War==

In the fall of 1845, Gregg began studying medicine at the University of Louisville School of Medicine. He graduated two semesters later on March 9, 1846. As part of his equipment for his trip to Santa Fe with the Owens wagon train were special-sized plates for his sixth-plate camera, probably delivered to him by naturalist Friedrich Adolph Wislizenus. In this capacity, he traveled through Chihuahua. ==After the war==

Gregg had previously planned to enter business with Susan Shelby Magoffin's husband Samuel, so he left his effects and collections in Saltillo and traveled to the east in 1847 to buy merchandise; upon arrival he received a message from Magoffin, who had changed his mind. Gregg traveled to Washington, D.C., where he was unimpressed after meeting President James K. Polk, and took a series of steamships down the Mississippi River into the Gulf of Mexico, then up the Rio Grande and back to Saltillo at the end of 1847. Through the spring of 1848 he actively practiced medicine for the first time since earning his degree. He complained that his medical partner, Dr. G. M. Prevost, was disorganized and "in love" with a 13-year-old girl. ==Plant collector==

'' is also named after Josiah Gregg. Several plant species native to the Southwestern United States and Mexico bear the species patronym greggii to honor Gregg's contributions to botany, including Ceanothus greggii, the desert ceanothus, which he collected at the site of the Battle of Buena Vista in 1847. ==Gold Rush and Humboldt Bay==

In 1849, Gregg joined the California Gold Rush by sailing from Mazatlán to San Francisco, eating canned food for the first time and remarking in a letter that he liked it. He left field notes with his former partner Jesse Sutton and gave Sutton instructions what to do with them if he did not return from what might turn out to be his last trip. Shortly thereafter he visited placer mines on the Trinity River. The roster of the party was: Gregg; Thomas Seabring of Ottawa, Illinois; David A. Buck of New York; J. B. Truesdale of Oregon; Charles C. Southard of Boston; Isaac Wilson of Missouri; Lewis Keysor Wood of Kentucky; and James Van Duzen. They had been told by Indians that the Pacific Ocean was an eight-day journey, so they provisioned for ten days' rations. The party instead followed the river until it became impassable, then went west. they emerged from the redwood forests and saw the ocean at the mouth of a watercourse which they called the Little River. and passed through present-day Eureka on 26 December. Southard's story of burying Gregg after his death may not be the whole truth. Other reports say he died on February 25 near Clear Lake, California, of poor health and the hardships of his journey, while another casts doubt on the story that his companions buried him, instead suggesting he survived at least briefly at an Indian village. In any case, his papers, instruments, and specimens were lost. ==Legacy==

Gregg's 1849–1850 expedition has been credited with the rediscovery of Humboldt Bay by land, which resulted in its settlement. About eighty plant names were originally assigned to honor Gregg; as of 2002, 47 Mexican and Southwestern plant species bear the specific patronym ''''. ==Publications==

• Josiah Gregg, Commerce of the Prairies, ed. Max I. Moorhead, University of Oklahoma Press, Norman, Oklahoma, 1954. • Josiah Gregg, Diary and Letters of Josiah Gregg, 2 volumes, University of Oklahoma Press, Norman, Oklahoma, 1941, 1944. • Josiah Gregg, "Commerce of the Prairies, or, The Journal of a Santa Fé trader, during eight expeditions across the great western prairies, and a residence of nearly nine years in northern Mexico", 2 vols., Moore, Philadelphia, 1849. Available at https://archive.org/details/commerceofpra01greg ==See also==