Answer the question at the end by quoting:

The Mothers of Invention were an American rock band from California that served as the backing musicians for Frank Zappa. Formed in 1964, their work is marked by the use of sonic experimentation, innovative album art, and elaborate live shows. Originally an R&B band called the Soul Giants, the band's first lineup included Ray Collins, David Coronado, Ray Hunt, Roy Estrada and Jimmy Carl Black. Zappa was asked to take over as the guitarist following a fight between Collins and Coronado, the band's original saxophonist/leader.
The Soul Giants were formed in 1964. In 1964, Frank Zappa was approached by Ray Collins who asked him to take over as the guitarist following a fight between Collins and the group's original guitarist. Zappa accepted, and convinced the other members that they should play his music to increase the chances of getting a record contract. Original leader David Coronado did not think that the band would be employable if they played original material, and left the band. Zappa soon assumed leadership and the role as co-lead singer, even though he never considered himself a singer. The band was renamed the Mothers, coincidentally on Mother's Day. The group increased their bookings after beginning an association with manager Herb Cohen, while they gradually gained attention on the burgeoning Los Angeles underground music scene. In early 1966, they were spotted by leading record producer Tom Wilson when playing Zappa's "Trouble Every Day," a song about the Watts Riots. Wilson had earned acclaim as the producer for singer-songwriter Bob Dylan and the folk-rock act Simon & Garfunkel, and was notable as one of the few African Americans working as a major label pop music producer at this time. Wilson signed the Mothers to the Verve Records division of MGM Records, which had built up a strong reputation in the music industry for its releases of modern jazz recordings in the 1940s and 1950s, but was attempting to diversify into pop and rock audiences. Verve insisted that the band officially rename themselves because "Mother" in slang terminology was short for "motherfucker"--a term that apart from its profanity, in a jazz context connotes a very skilled musical instrumentalist. The label suggested the name "The Mothers Auxiliary", which prompted Zappa to come up with the name "The Mothers of Invention".

Was their anyone else in the band when it started?

manager Herb Cohen,

Answer the question at the end by quoting:

Plains Indians, Interior Plains Indians or Indigenous people of the Great Plains and Canadian Prairies are the Native American tribes and First Nation band governments who have traditionally lived on the greater Interior Plains (i.e. the Great Plains and the Canadian Prairies) in North America. Their historic nomadic culture and development of equestrian culture and resistance to domination by the government and military forces of Canada and the United States have made the Plains Indian culture groups an archetype in literature and art for American Indians everywhere. Plains Indians are usually divided into two broad classifications which overlap to some degree. The first group became a fully nomadic horse culture during the 18th and 19th centuries, following the vast herds of buffalo, although some tribes occasionally engaged in agriculture.
The earliest Spanish explorers in the 16th century did not find the Plains Indians especially warlike. The Wichita in Kansas and Oklahoma lived in dispersed settlements with no defensive works. The Spanish initially had friendly contacts with the Apache (Querechos) in the Texas Panhandle. Three factors led to a growing importance of warfare in Plains Indian culture. First, was the Spanish colonization of New Mexico which stimulated raids and counter-raids by Spaniards and Indians for goods and slaves. Second, was the contact of the Indians with French fur traders which increased rivalry among Indian tribes to control trade and trade routes. Third, was the acquisition of the horse and the greater mobility it afforded the Plains Indians. What evolved among the Plains Indians from the 17th to the late 19th century was warfare as both a means of livelihood and a sport. The Plains Indians raided each other, the Spanish colonies, and, increasingly, the encroaching frontier of the Anglos for horses, and other property. They acquired guns and other European goods primarily by trade. Their principal trading products were buffalo hides and beaver pelts. Although they could be tenacious in defense, Plains Indians warriors took the offensive mostly for material gain and individual prestige. The highest military honors were for "counting coup"--touching a live enemy. Battles between Indians often consisted of opposing warriors demonstrating their bravery rather than attempting to achieve concrete military objectives. The emphasis was on ambush and hit and run actions rather than closing with an enemy. Success was often counted by the number of horses or property obtained in the raid. Casualties were usually light. "Indians consider it foolhardiness to make an attack where it is certain some of them will be killed." Due to their mobility, endurance, horsemanship, and knowledge of the vast plains that were their domain, the Plains Indians were often victors in their battles against the U.S. army in the American era from 1803 to about 1890. However, although Indians won many battles, they could not undertake lengthy campaigns. Indian armies could only be assembled for brief periods of time as warriors also had to hunt for food for their families. The exception to that was raids into Mexico by the Comanche and their allies in which the raiders often subsisted for months off the riches of Mexican haciendas and settlements. The basic weapon of the Indian warrior was the short, stout bow, designed for use on horseback and deadly, but only at short range. Guns were usually in short supply and ammunition scarce for Native warriors.

did the plains indians get horses?
The Plains Indians raided each other, the Spanish colonies, and, increasingly, the encroaching frontier of the Anglos for horses,