Anne Murray – vocals, backing vocals
Doug Riley – acoustic piano, organ , string arrangements and conductor (6, 8, 12, 13, 19, 22, 25)
Steve Sexton – keyboards, organ, string arrangements and conductor (4, 5, 10, 11, 14)
Tommy West – keyboards, organ, backing vocals, vocals (4)
Mike "Pepe" Francis – acoustic guitar, electric guitar, mandolin
Aidan Mason – acoustic guitar, electric guitar, classical guitar , slide guitar
Peter Bleakney – bass, fretless bass
Peter Cardinali – bass, string arrangements and conductor(1, 2, 3, 16, 26)
Gary Craig – drums, percussion
Barry Keane – drums, percussion
Brian Barlow – percussion, marimba , vibraphone
Vern Dorge – alto saxophone, soprano saxophone
Richard Armin – cello
Steve Dann – viola
Adele Armin – violin
Marie Berard – violin
Dawn Cumberbatch – backing vocals
Rique Franks – backing vocals
Tuku Matthews – backing vocals
Amy Sky – backing vocals
Dawn Langstroth – vocals (7), backing vocals (12, 15, 21)
Colina Phillips – additional vocals (24), vocal arrangements (24)
Jackie Richardson – additional vocals (24)
Sharon Lee Williams – additional vocals (24)
Vivian Williams – additional vocals (24)
Anne Murray – producer
Tommy West – producer
L. Stu Young – recording, mixing
Joel Kazmi – recording assistant
Nick Blagona – mastering
Raine Munro – production assistant
Michael Ragogna – production assistant
Darlene Sawyer – production assistant
Andrew Eccles – cover photography
Kathleen Finlay – inside photography
Bruce Allen – management
^ Phares, Heather. "What a Wonderful World: 26 Inspirational Classics review" . Allmusic . Retrieved February 23, 2011 .
^ What a Wonderful World (back cover). EMI Music Canada and StraightWay Records. 1999. ℗&© 1999 EMI Music Canada... Manufactured and marketed by StraightWay Records, 101 Winners Circle, Brentwood, TN 37027-5017.
^ "What a Wonderful World: 26 Inspirational Classics Charts" . Allmusic . Retrieved February 23, 2011 .
^ "Anne Murray defers retirement for duets" . CTV News . 12 November 2007. Retrieved 5 December 2023 .
^ "Anne Murray Chart History (Billboard 200)" . Billboard . Retrieved October 23, 2020.
^ "Anne Murray Chart History (Christian Albums)" . Billboard . Retrieved October 23, 2020.
^ "Anne Murray Chart History (Top Country Albums)" . Billboard . Retrieved October 23, 2020.
^ "Top Country Albums – Year-End 2000" . Billboard . Retrieved October 23, 2020 .
^ "Top 100 country albums of 2001 in Canada" . Jam! . Archived from the original on July 1, 2002. Retrieved March 28, 2022 .
^ "Top Country Albums – Year-End 2001" . Billboard . Retrieved October 23, 2020 .
^ "Top 100 country albums of 2002 in Canada" . Jam! . Archived from the original on December 4, 2003. Retrieved March 28, 2022 .