In the forms relating to the 1949 Register (as in those in use before the war) the expression used was "other names." Some people took this to mean the names of persons other than themselves. To remove this misunderstanding, "forenames" was substituted. The expression "Christian names" is not used because of its restricted connotation, since not all forenames are Christian names.
It is difficult at this short notice since the publication of the register to get a list distinguishing by sexes because there has been a growing practice in recent years for names to be given to individuals which do not indicate the sex of the holders.