Yes, interesting to learn about such a behind the sounds person. Per Wiki, some of the #1 UK singles on which he is heard, many of which also charted in the US -
1960 Frankie Vaughan - "Tower of Strength"
1961 Petula Clark - "Sailor"
1961 Eden Kane - "Well I Ask You"
1961 Danny Williams - "Moon River"
1962 Mike Sarne - "Come Outside"
1962 Frank Ifield - "I Remember You"
1962 Frank Ifield - "Lovesick Blues"
1963 Jet Harris and Tony Meehan - "Diamonds"
1963 Frank Ifield - "Wayward Wind"
1963 Frank Ifield - "Confessin'"
1963 Brian Poole and the Tremeloes - "Do You Love Me"
1964 The Bachelors - "Diane"
1964 Cilla Black - "Anyone Who Had a Heart"
1964 Peter & Gordon - "A World Without Love"
1964 The Four Pennies - "Juliet"
1964 Cilla Black - "You're My World"
1964 Georgie Fame - "Yeh Yeh"
1965 The Seekers - "I'll Never Find Another You"
1965 Tom Jones - "It's Not Unusual" (not the main guitar)
1965 Jackie Trent - "Where Are You Now (My Love)"
1965 Sandie Shaw - "Long Live Love"
1965 The Walker Brothers - "Make It Easy On Yourself"
1965 Ken Dodd - "Tears"
1965 The Seekers - "The Carnival Is Over"
1966 The Overlanders - "Michelle"
1966 The Walker Brothers - "The Sun Ain't Gonna Shine Anymore"
1966 Dusty Springfield - "You Don't Have to Say You Love Me"
1966 Chris Farlowe - "Out of Time"
1966 Tom Jones - "Green, Green Grass of Home"
1967 Engelbert Humperdinck - "Release Me"
1967 Petula Clark - "This Is My Song"
1967 Sandie Shaw - "Puppet on a String"
1967 The Tremeloes - "Silence Is Golden"
1967 Engelbert Humperdinck - "The Last Waltz"
1967 Long John Baldry - "Let The Heartaches Begin"
1968 Love Affair - "Everlasting Love"
1968 Esther and Abi Ofarim - "Cinderella Rockafella"
1968 Dave Dee, Dozy, Beaky, Mick and Tich - "The Legend of Xanadu"
1968 Des O'Connor - "I Pretend"
1968 The Scaffold - "Lily The Pink"
1968 Marmalade - "Ob-La-Di, Ob-La-Da"
1969 Peter Sarstedt - "Where Do You Go To (My Lovely)"
1969 Thunderclap Newman - "Something in the Air"
1969 Jane Birkin and Serge Gainsbourg - "Je t'aime... moi non plus"
1969 Rolf Harris - "Two Little Boys"
1970 Dana - "All Kinds of Everything"
1971 Middle of the Road - "Chirpy Chirpy Cheep Cheep"
1971 Benny Hill - "Ernie (The Fastest Milkman in the West)"
1971 New Seekers - "I'd Like to Teach the World to Sing"
1972 Gilbert O'Sullivan - "Clair"
1973 Gilbert O'Sullivan - "Get Down"