Bolton Wanderers legend Nat Lofthouse was absent from a plaque listing every England player's debut.
The FA was alerted by a Bolton fan shocked to see the "Lion of Vienna" missing from a pride of England stars.
Les Medley, who was a star of the "push and run" Tottenham team of the early 50s, was also missed out.
The FA has apologised to the families of both players.
"We appreciate this matter being brought to our attention and, following an investigation, have ascertained that it was due to a formatting error," said a spokesman.
"The panel is in the process of being taken down and will be replaced imminently"
The omission of England's sixth highest scorer, who netted 30 goals in 33 games, was spotted in the week when Wayne Rooney scored his 50th goal for England to break Sir Bobby Charlton's record.
Bolton's club historian Simon Marland said: "How can you miss a guy a who scored 30 goals in 33 games?"
"Anyone can make a mistake but on the positive side it's probably got people talking about Nat."
Lofthouse earned the nickname "The Lion of Vienna" because of his winning goal for England in 1952 against Austria following a run from the halfway line.

Parklands High School in Speke will shut in August following consultations with parents, staff and students, Liverpool City Council said.
It was placed in special measures following an inspection by Ofsted in December.
Students will transfer to other schools and the council said it would look at alternative employment for staff.
Exam results are lower than other Liverpool schools with 32% of pupils getting five GCSEs including English and maths, compared to 58% across the rest of the city, the council said.
Parklands High School opened in 2002 as a replacement for Speke Comprehensive.
There are currently 198 pupils at the school, which has capacity for more than 900, and only 34 children applied for places in September.
Councillor Jane Corbett, cabinet member for education, said: "We are now at the stage where the numbers are so low that it is not able to offer a full curriculum and this is simply not in the best interests of the pupils."
Pupils will transfer to others schools in the area including ESLA (Enterprise South Liverpool Academy), St Julies and Gateacre.
Councillors will give final approval of the school's closure at a cabinet meeting on 21 March.

Margaret Loughrey, 50, from Bridge Street, Strabane, admitted a number of offences.
She was ordered to pay £559 for damaging the driver's glasses and £200 compensation to the driver.
Ms Loughrey's win was the largest ever jackpot win in Northern Ireland.
As well as assaulting the driver, Ms Loughrey also pleaded guilty to causing criminal to his glasses and SatNav during the incident in his taxi at Chestnut Park in Strabane on 14 May.
Ms Loughrey's solicitor said she had come to court with a clear record and had been drinking vodka with friends all night before the incident.
He described her behaviour as shameful and said it was unfortunate her reputation was now blemished.
The deputy district judge at Strabane Magistrates' Court said he believed it was a "one-off incident" caused by Ms Loughrey consuming a lot of alcohol.
"You have had more advantages than most people in the last number of years, but they have obviously brought some problems," he said.
"I accept you have made a major contribution to the local community, but you will be treated as anyone else will be treated coming before the court with a clear record."
The Football Association has apologised for its own-goal in omitting one of England's most prolific scorers from a roll of honour at Wembley Stadium.
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A Liverpool school branded "among the lowest of all schools in England" by the education watchdog is to close.
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A County Tyrone woman who won £27m in the Euromillions draw in 2013 has been ordered to complete 150 hours of community service after pleading guilty to assaulting a taxi driver.