Question: The Hamasa Shrine Temple Theater houses one of only two Robert Morton theatre organs, with the other at the Saenger Theater in a city primarily in Forrest County with a population at the 2010 census of what? 

<P0-S0> The Hamasa Shrine Temple Theater, added to the National Register of Historic Places in 1979, is a historic theater located at 2320 8th Street in Meridian, Mississippi. <P0-S1>  The Temple Theater was constructed in the Moorish Revival style and began screening silent films in 1928. <P0-S2>  The theater features a Byzantine motif, a swirl of marble fountains, and large bronze chandeliers. <P0-S3>  At the time of its construction, the theater contained one of the largest stages in the United States, second only to the Roxy Theater in New York City. <P0-S4>  The theater houses one of only two Robert Morton theatre organs still installed in their original locations in the State of Mississippi – the other being installed at the Saenger Theater in Hattiesburg, Mississippi. <P0-S5>  Both organs are under the care and restoration efforts of the Magnolia Chapter of the American Theatre Organ Society (ATOS). <SEP> <P1-S0> The Robert Morton Organ Company was a producer of theater pipe organs and church organs, located in Van Nuys, California. <P1-S1>  Robert Morton was the number two volume producer of theatre organs, building approximately half as many organs as the industry leader Wurlitzer. <P1-S2>  The name Robert Morton was derived not from any person in the company, but rather from the name of company president Harold J. Werner's son, Robert Morton Werner. <SEP> <P2-S0>  Repertory theatre had been popular in the United States through the 19th century, and it is not clear how the combination system originated. <P2-S1>  They began to tour with two or three actors, and then eventually whole companies would tour with them and they would perform a repertory of plays (Wilmeth 200-201). <P2-S2>  The Stock companies would cancel their normal repertory programs for a few nights to allow for the show of the star. <P2-S3>  After the star left, the company returned to its repertory schedule as per usual. <P2-S4>  Combination companies were fueled by stars. <P2-S5>  The idea of celebrity was at full force and people would flock to theater houses to see their favorite stars perform. <P2-S6>  Audiences would come in from all over to sold out performances at playhouses and see their favorite stars. <P2-S7>  Yet annoyed by the lack of talent from regional companies, the stars began to search for companies to tour with them. <P2-S8>  The Star agenda or star system that had been set in place in mid 19th century America helped greatly in the development of the combination company. <P2-S9>  Stars made famous in New York would travel to stock theaters and perform limited engagements there. <P2-S10>  The star would be supported by the local company of actors in the play, which proved to be very frustrating to them (Poggi 5). <P2-S11>  This switch to companies that support the stars for the whole tour was one more step in the transition from stock companies to combination companies. <P2-S12> A combination company was a theatrical touring company which performed only one play. <P2-S13>  Unlike repertory companies, which performed multiple plays in rotation, combination companies used more elaborate and specialized scenery in their productions. <P2-S14>  Combination companies contributed to the early success of Broadway theatre, as most combination companies began their tours in New York City. <SEP> <P3-S0> Hattiesburg is a city in the U.S. state of Mississippi, primarily in Forrest County (where it is the county seat) and extending west into Lamar County. <P3-S1>  The city population was 45,989 at the 2010 census, with an estimated population of 46,805 in 2015.