Use these abbreviations to record the gender of persons in the census.  Note that this information may be gleaned from the age column in the original returns.,,
Gender,Abbreviation,Notes
Female,F,
Male,M,
Indeterminate,I,"This is used if there is no indication on the census return, and the name does not make it obvious"
Not given,-,The gender is not recorded - use this in preference to 'I'