It was only the 1901 & 1911 Censuses that had "Employer, worker, or own account". The 1891 Census had "Employer" in column 10, "Employed" in column 11, and "Neither employer nor employed" in column 12. The 1851, 1861, 1871, 1881 censuses just had "Rank, profession or occupation". The 1841 had "Profession, trade, employment or of independent means".
The 1901 instructions for column 14 were that "Own Account" meant neither an Employer nor working for an Employer, but working on own account.
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