Despite the huge rivalry, Liverpool have completed more direct transfers with Everton than any other club. Famously, however, Liverpool did not buy directly from Everton between 1959 and 2000, while there was a similar "freeze" in the other direction between 1961 and 1982.
It is often mistakenly claimed that Dave Hickson is the only player to have played for "all three Merseyside clubs". In fact he is the third player, along with John Heydon and Frank Mitchell, to have played for all three Merseyside league clubs still in existence. But we should not forget New Brighton, Football league members from 1923–51, for whom Bill Lacey and Neil McBain played, both having also played for Everton and Liverpool.
And to complete a list of six players who have played for three different Merseyside clubs, John Whitehead also played for Bootle in their one year as a league team (1892-3), before they were replaced in Division 2 by local rivals Liverpool FC.
The list below shows transfer dates and fees, where known.
Everton then Liverpool
Abel Xavier 2002 £750,000 (only player to play in both derby matches for both teams in the same season)
Nick Barmby 2000 £6m (the highest fee Liverpool have paid Everton)
Dave Hickson 1959 £12,000 (also played for Tranmere Rovers one of only three players to play for all three Merseyside clubs still in existence)
Tony McNamara 1957 £4,000
John Heydon 1949 no fee (also played for Tranmere Rovers one of only three players to play for all three Merseyside clubs still in existence)
Bill Harthill 1936
Jack Balmer 1935 no fee
Thomas Johnson 1934
Frank Mitchell 1919 (also played for Tranmere Rovers one of only three players to play for all three Merseyside league clubs still in existence)
Bill Lacey 1912 part of exchange deal for Uren (Lacey also played for New Brighton, one of six players to have played for three different Merseyside clubs)
Tom Gracie 1912 part of exchange deal for Uren
Don Sloan 1908 no fee
David Murray 1904
Abe Hartley 1897
Alex Latta 1896 (Did not make a senior appearance for Liverpool)
Fred Geary 1895 £60
John Whitehead 1894 (also played for Bootle), one of six players to have played for three different Merseyside clubs)
Patrick Gordon 1893
Duncan McLean 1892
Tom Wylie[disambiguation needed] 1892
The following played for another/other club before moving to Liverpool
Andrew Hannah - Played for Renton F.C. in between. (Only player to captain both Everton and Liverpool)
Edgar Chadwick - Played for Blackburn Rovers and Burnley in between.
David Johnson- Played for Ipswich Town in between; returned to Everton after playing for Liverpool.
Neil McBain - Played for St. Johnstone in between. He also played - under bizarre circumstances - one game for New Brighton: as manager he played one game in goal due to an injury crisis, at the age of 52, becoming the oldest player ever to play in a league game
Steve McMahon- Played for Aston Villa in between.
Darren Potter- Everton youth player who never made a first-team appearance, played for Blackburn Rovers in between.
Billy Scott- Played for Leeds City in between.
Liverpool then Everton
Gary Ablett 1992 £750,000 (only player to win the FA Cup with both clubs)
Peter Beardsley 1991 £1m (Everton's most expensive signing from Liverpool)
Alan Harper 1983 £100,000 (though on Liverpool's books, he never made a first-team appearance)
Kevin Sheedy 1982 £100,000
David Johnson 1982 £100,000 (started at Everton, went to Ipswich Town then Liverpool then back to Everton)
Johnny Morrissey 1962 £10,000
Jimmy Payne 1956 £5,000
Dick Forshaw 1927 Only player to win the League Championship with both clubs
Harold Uren 1912 part of exchange deal for Lacey and Gracie
Benjamin Howard Baker c.1910
The following played for another/other club before moving to Everton
Arthur Berry - Played for Oxford University in between
David Burrows - Played for West Ham United in between.
Don Hutchison - Played for West Ham United and Sheffield United in between.
Dave Watson - Played for Norwich City in between.
John Gidman - Played for Aston Villa in between.
Sander Westerveld - (Loan) Played for Real Sociedad and Portsmouth in between.
As well as players "crossing the park", Everton's first ever manager W. E. Barclay stayed on at Anfield after Everton moved to Goodison Park to become Liverpool's first manager.