In 1901 I have a Florrie Green age 7 b Mexborough (Doncaser RD) with father Charles general carter, mother Eliza, siblings Fred and Edith living in Mexborough. Fits except occupation, maybe he changed later or she bigged up her dad, won't be the first i've seen.
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Florrie age 7 fits with a Sept 1873 birthday, could be the informant on the death cert made a mistake with year of birth but knew the birthday. nearly did same thing when I registered my mother's death, luckily OH corrected me.