Adolf Kozieradski (30 June 1835 - 14 November 1901) was a Polish operatic bass-baritone.
 He notably created the role of Miecznik in the world premiere of Stanisław Moniuszko's "The Haunted Manor" at the Great Theatre, Warsaw in 1865.
Wilhelm Troszel (26 August 1823 - 2 March 1887) was a Polish composer and operatic bass.
 Born in Warsaw, he was the son of composer and piano maker Wilhelm Troschel.
 He made his stage debut at the Grand Theatre, Warsaw on 17 April 1843.
 At that theatre he notably created the role of Zbigniew in the world premiere of Stanisław Moniuszko's "The Haunted Manor" at the Grand Theatre, Warsaw in 1865.
Haunted Mansion is a dark ride attraction located at Disneyland, Magic Kingdom, and Tokyo Disneyland.
 The attraction, although differing slightly in every location, places riders inside a haunted manor resided by "999 happy haunts".
Ján Koehler (died 28 June 1895) was a Polish operatic baritone.
 Born in Lviv, he studied singing in his native city and in Vienna.
 He made his professional debut in Lviv in 1845 as Raimunds in Conradin Kreutzer's "Der Verschwender".
 From 1857–1872 he was a leading artist at the Teatr Wielki, Warsaw where he notably created the role of Maciej in the world premiere of Stanisław Moniuszko's "The Haunted Manor".
The Haunted Manor (Polish: "Straszny dwór" ) is an opera in four acts composed by Polish composer Stanisław Moniuszko in 1861–1864.
 The libretto was written by .
 Despite being a romance and a comedy, it has strong Polish patriotic undertones, which made it both popular with the Polish public and unpopular – to the point of being banned – by the Russian authorities which controlled most of Poland during that era.
"Grim Grinning Ghosts (The Screaming Song)" is the theme song for the Haunted Mansion attractions at Disney theme parks.
 It was composed by Buddy Baker, with lyrics written by X Atencio.
 Its melody has been adapted for numerous uses since its composition in the late 1960s.
Westerlund 2 is an obscured compact young star cluster (perhaps even a super star cluster) in the Milky Way, with an estimated age of about one or two million years.
 It contains some of the hottest, brightest, and most massive stars known.
 The cluster resides inside a stellar breeding ground known as Gum 29, located 20,000 light-years away in the constellation Carina.
 It is half a degree from the naked eye Cepheid variable V399 Carinae.
Julián Dobrski (31 December 1811 or 1812, Nowe - 2 May 1886, Warsaw) was a Polish operatic tenor.
 He was one of the main tenors at the Grand Theatre, Warsaw, from 1832 to 1861, and again in 1865 when he sang the role of Stefan in the world premiere of Stanisław Moniuszko's "The Haunted Manor".
Ghost Blasters is an interactive dark ride franchise, designed and created by Sally Corporation.
 The franchise includes many locations at various amusement parks throughout the United States and Canada.
 Riders on "Ghost Blasters" are equipped with laser guns, as the attraction travels though a themed "haunted manor".
 The goal of the attraction is to accumulate a high score by aiming and firing at lit targets.
HalloWishes (also known by its full title, "Happy HalloWishes: A Grim Grinning Ghosts Spooktacular in the Sky") is a fireworks show that takes place during "Mickey's Not-So-Scary Halloween Party" at Walt Disney World's Magic Kingdom theme park.
 The show is loosely based on the popular Haunted Mansion attraction and includes vocal appearances by Disney Villains.

Question: Who resides inside the haunted manor that has the theme song "Grim Grinning Ghosts"?
Answer: "999 happy haunts"