Can 'they/them/their/themself' be used for the third person 'one' that has already been mentioned? In academic writing, when you talk about a generic person whose gender is not specified, 'one' is used as a pronoun. But one has no possessive/object form. And singular 'they' is also used as a generic person in academic writing, e.g. APA. When you have to refer again to the generic person that was mentioned as 'one', can 'they' be used to refer to the 'one'? For example, One should be aware of their advantageous position. ("their" = one's) One should be aware of the tactics they can employ. ("One" = "they")