Personnel

• Jeff Ament
  Jeff Ament
  Jeffrey Allen Ament is an American musician who serves as the bassist for the American rock band Pearl Jam. Along with Stone Gossard, Mike McCready, and Eddie Vedder, he is one of the founding members of Pearl Jam...
  
   – bass guitar
  Bass guitar
  The bass guitar is a stringed instrument played primarily with the fingers or thumb , or by using a pick....
  
  , vocals
  Singing
  Singing is the act of producing musical sounds with the voice, and augments regular speech by the use of both tonality and rhythm. One who sings is called a singer or vocalist. Singers perform music known as songs that can be sung either with or without accompaniment by musical instruments...
  
  , assistant production
  Record producer
  A record producer is an individual working within the music industry, whose job is to oversee and manage the recording of an artist's music...
  
  , inner sleeve design
• Mark Arm
  Mark Arm
  Mark Arm is the vocalist for the grunge band Mudhoney. He is also credited with coining the term "grunge" to describe his style of rock music...
  
   – vocals, assistant production
• Bruce Fairweather
  Bruce Fairweather
  Bruce Fairweather is a guitarist/bassist based in Seattle. In 1985, he replaced Steve Turner in the grunge band Green River, which included Mark Arm , Alex Vincent as well as Jeff Ament and Stone Gossard, later of Pearl Jam....
  
   – guitar
  Guitar
  The guitar is a plucked string instrument, usually played with fingers or a pick. The guitar consists of a body with a rigid neck to which the strings, generally six in number, are attached. Guitars are traditionally constructed of various woods and strung with animal gut or, more recently, with...
  
  s
• Stone Gossard
  Stone Gossard
  Stone Carpenter Gossard is an American musician who serves as the rhythm and lead guitarist for the American rock band Pearl Jam. Along with Jeff Ament, Mike McCready, and Eddie Vedder, he is one of the founding members of Pearl Jam...
  
   – guitars, vocals, assistant production
• Alex Vincent
  Alex Vincent (drummer)
  Alex Shumway was the drummer for the bands Spluii Numa and, later, one of the pioneers of the grunge scene, Green River. After Green River had broken up, Shumway moved to Japan...
  
   – drums
  Drum kit
  A drum kit is a collection of drums, cymbals and often other percussion instruments, such as cowbells, wood blocks, triangles, chimes, or tambourines, arranged for convenient playing by a single person ....
  
  , percussion
  Percussion instrument
  A percussion instrument is any object which produces a sound when hit with an implement or when it is shaken, rubbed, scraped, or otherwise acted upon in a way that sets the object into vibration...
  
  

• Bruce Calder – groaning, moaning, screetching on "Porkfist", engineering
  Audio engineering
  An audio engineer, also called audio technician, audio technologist or sound technician, is a specialist in a skilled trade that deals with the use of machinery and equipment for the recording, mixing and reproduction of sounds. The field draws on many artistic and vocational areas, including...
  
  , production
• Jack Endino
  Jack Endino
  Jack Endino is a producer and musician based in Seattle. Long associated with Seattle label Sub Pop and the grunge movement, Endino worked on seminal albums from bands such as Mudhoney, Soundgarden, and Nirvana...
  
   – pre-production recording
• Kim Gordon
  Kim Gordon
  Kim Althea Gordon is an American musician, vocalist, artist, record producer, video director and actress. She has sung and played bass and guitar in the alternative rock band Sonic Youth, and in Free Kitten with Julia Cafritz...
  
   – sonic groan
• Linda Owens – jacket design
• Charles Peterson
  Charles Peterson (photographer)
  Charles Peterson is an American photographer well known for his work with the independent record label Sub Pop. His photos are presented in the movie Kurt Cobain: About a Son...
  
   – photography
  Photography
  Photography is the art, science and practice of creating durable images by recording light or other electromagnetic radiation, either electronically by means of an image sensor or chemically by means of a light-sensitive material such as photographic film...
  
  
• Sharka Stern – background vocal
  Backing vocalist
  A backing vocalist or backing singer is a singer who provides vocal harmony with the lead vocalist or other backing vocalists...
  
  s on "Swallow My Pride
  Swallow My Pride
  "Swallow My Pride" is a song by the Seattle, Washington-based rock band Green River. Featuring lyrics written by frontman Mark Arm and music written by guitarist Steve Turner, the song is the third track on the band's debut EP, Come on Down...
  
  "