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FIRA FIRB FIRC FIRD FIRE FIRF FIRG FIRH FIRI FIRJ FIRK FIRL FIRM FIRN FIRO FIRP FIRR FIRS FIRT FIRU FIRV FIRW FIRY FIRZ
Surnames shown in bold text represent around 90% of the population of Great Britain. All other names are very uncommon in the UK and we are unlikely to have any useful data on them.