Seeking adventure, Stewart travelled to
St. Louis, Missouri, in 1832, where he brought letters of introduction to
William Clark,
Pierre Chouteau Jr.;
William Ashley and other prominent residents. He arranged to accompany
Robert Campbell, who was taking a pack train to the 1833 rendezvous of mountain men. The party left St. Louis on 7 May and attended the Horse Creek Rendezvous in the Green River Valley of Wyoming. Here Stewart met the
mountain men Jim Bridger and
Thomas Fitzpatrick, as well as
Benjamin Bonneville, who was leading a governmental expedition in the area. With some of the men, Stewart visited the Big Horn Mountains, wintered at
Taos, and attended the next rendezvous at Ham's Fork of the Green River. Later that year, he journeyed to
Fort Vancouver, 90 miles up the
Columbia River from the Pacific Ocean. Stewart attended the 1835 rendezvous at the mouth of New Fork River on the Green and reached St. Louis in November. Finding that his finances were curtailed because his brother had failed to forward his share of the estate left by their father, Stewart went to New Orleans, speculated in cotton to recoup, and wintered in
Cuba. In May, he joined Fitzpatrick's train to the Rockies for another rendezvous on Horse Creek. He wintered in 1836–1837 and 1837–1838 at New Orleans, where he speculated again in cotton. In 1838 he learned that his childless older brother John had died of an undisclosed disease (probably cancer). William Stewart would become the seventh baronet of Murthly. . The Walters Art Museum. For the
Rocky Mountain Rendezvous of 1837, Stewart took along an American artist,
Alfred Jacob Miller, whom he hired in New Orleans. Miller painted a notable series of works on the
mountain men, the rendezvous,
American Indians, and
Rocky Mountain scenes. In 1839 he delivered finished oils to Stewart, who hung the works in Dalpowie Lodge on the Murthly estate. Working from watercolor sketches he had made during their trip to the Rockies, Miller painted many canvases while an artist in residence on the estate. Stewart returned to Scotland and Murthly Castle in June 1839 with his romantic partner Antoine Clement, and the couple lived in Dalpowie Lodge, while entertaining in Murthly Castle. Stewart explained Clement's presence by at first referring to him as his valet, then as his footman. Because Clement was restless and unhappy in Scotland, the couple spent many months travelling abroad, including an extended visit to the Middle East. Stewart's elder brother, John the 6th baronet, had incurred extensive debts in constructing a
new Murthly Castle. When attempts to earn extra income by hosting hunting parties proved disappointing, Stewart finally sold one the family's estates, Logiealmond Castle. The sale provided him with enough money to pay off his brother's debts and to allow him to return to the United States for an extended, lavish party held in the Rockies. Stewart returned to North America in late 1842, and in September 1843 he and a large entourage travelled to what is now Fremont Lake. Stewart brought with him a large array of velvet and silk
Renaissance costumes for his all-male guests to wear during the festivities. Fur trader
William Sublette co-hosted the party with Stewart. Though there had been no rendezvous since 1840, the party had many elements of the old Rocky Mountain gatherings. Stewart had planned to spend the winter of 1843–1844 in New Orleans, and visit Taos and Santa Fe the following spring, but the Renaissance pleasure trip ended in a "scandal" that led him to leave for Scotland immediately, never to return to the United States. Stewart's later life was one of turmoil and alienation from his family. His son
George Stewart died from a self-inflicted
sword swallowing injury in 1868. In 1856 Stewart's friend Ebenezer Nichols, his wife, and three sons, visited from Texas. When it came time to leave Scotland, the Nicholses' middle son, Franc, refused to return home. He instead stayed on with Stewart at Murthly Castle, eventually being adopted by Stewart and becoming his primary heir. Stewart died of pneumonia on 28 April 1871. ==See also==