Question: Peter Callander was a songwriter who created content for which Welsh singer?

Context articles: Daddy Don't You Walk So Fast
Peter Callander
Avenues and Alleyways
The Night Chicago Died
Las Vegas (Tony Christie song)
Geoff Stephens
Tom Jones (singer)
I Did What I Did for Maria
Billy Don't Be a Hero
Monsieur Dupont

"Daddy Don't You Walk So Fast" is a song written by Peter Callander and Geoff Stephens and performed by Wayne Newton.
 It sold over one million copies and was awarded a gold disc by the RIAA in July 1972.
 The song reached number 3 on the adult contemporary chart, and number 4 on the "Billboard" Hot 100.
 The song spent one week at number 1 on the "Cashbox" chart on August 5, 1972, one week at number 1 in Canada, and spent three weeks at number 1 in Australia.
 The song appeared on Newton's 1972 album, "Daddy Don't You Walk So Fast".
Peter Callander (10 October 1939 – 25 February 2014) was an English songwriter and record producer.
 Active from the 1960s onwards, Callander wrote or co-wrote songs that have been performed by recording artists such as Cilla Black, Tom Jones, Cliff Richard, Shirley Bassey, and The Tremeloes, amongst many others.
 Callander was also a founder member of the Society of Distinguished Songwriters (SODS), a director of PRS for Music, and formed a publishing company, Callander Family Music Ltd.
"Avenues and Alleyways" is a 1972 single recorded by Tony Christie as the theme song for the television series "The Protectors".
 It was written and produced by Mitch Murray and Peter Callander, who were also responsible for Christie's "Las Vegas" and "I Did What I Did for Maria".
 Following the chart-topping success of the re-release of "Is This the Way to Amarillo" in 2005, this song was also re-released and peaked at #26 on the UK Singles Chart.
 On its original release, it had only reached #37.
 It is included in the soundtrack of the 2000 film "Love, Honour and Obey", starring Ray Winstone and Jude Law.
"The Night Chicago Died" is a song by the British group Paper Lace, written by Peter Callander and Mitch Murray.
 The song reached number one on the "Billboard" Hot 100 chart for one week in 1974, reached number 3 in the UK charts, and number 2 in Canada.
 It is about a fictional shoot-out between the Chicago Police and members of the Al Capone Syndicate.
 The narrator retells his mother's anguish while awaiting news of the fate of her husband, a Chicago policeman.
 The song is featured in the theatrical trailer of the 2000 comedy-drama film High Fidelity.
 The song is also featured in the Season 1 episode of That '70s Show.
"Las Vegas" is a 1970 song written by Mitch Murray and Peter Callander best known in the version by Tony Christie which was his first UK Top 30 hit in January 1971.
 It was also recorded by Roberto Blanco 1970, Derek Dixon, Joe Dolan 1972, and in Danish by Poul Rudi to lyrics by Sejr Volmer-Sørensen 1973.
Geoffrey 'Geoff' Stephens (born 1 October 1934 in New Southgate, North London) is an English songwriter and record producer, most prolific in the United Kingdom in the 1960s and 1970s.
 He wrote a long series of hit records, often in conjunction with other British songwriters including Tony Macaulay, John Carter, Roger Greenaway, Peter Callander, Barry Mason, Ken Howard, Alan Blaikley, Don Black, Mitch Murray, and Les Reed.
Sir Thomas John Woodward OBE (born 7 June 1940), also known by his stage name Tom Jones, is a Welsh singer.
 His career has spanned six decades, from his emergence as a vocalist in the mid-1960s with a string of top hits, regular touring, appearances in Las Vegas (1967–2011), and career comebacks—to coaching on "The Voice UK" from 2012 (with the exception of 2016).
 Jones's powerful voice has been described as a "full-throated, robust baritone".
I Did What I Did For Maria was a UK Number 2 hit in June 1971 for Tony Christie.
 It was written and produced by Mitch Murray and Peter Callander, who were also responsible for Christie's 'Las Vegas' and 'Avenues And Alleyways'.
 The song is about a widower who, on the eve of his execution, recalls how he remorselessly avenged his dead wife, hence the title.
 The song was also a hit in Ireland, where it also reached Number 2.
"Billy Don't Be a Hero" is a 1974 pop song that was first a UK hit for Paper Lace and then, some months later, a US hit for Bo Donaldson and The Heywoods.
 The song was written and composed by two British songwriters, Mitch Murray and Peter Callander.
"Monsieur Dupont" is the twenty-first single by British singer Sandie Shaw.
 Originally sung by the German singer Manuela in 1967, Shaw's version, written by and Peter Callander became her last big hit of the 1960s.
 It reached number six in the UK Singles Chart in 1969, making it her eighth and final Top 10 hit single.
 Shaw performed the song on BBC's "Top of the Pops" in February 1969.