From a surname: This is a redirect from a person's surname. It is used because Wikipedia has only one article about a person with this surname, or because one individual is the most likely topic sought by this surname (other persons who share this name might be listed at an anthroponymy article or at the end of a disambiguation page).
Mentioned in a hatnote: This is a redirect from a title that is mentioned in a hatnote at the redirect target. The mention is usually atop the target article. It may, however, be directly under a section header, or in another article's hatnote (whenever the hatnote is under a section, {{R to section}} should also be used).
The titles of redirects mentioned in hatnotes may refer to a subject other than that of the target page. It is possible that this redirect may need to be retargeted, or become an article under its own title (see {{R with possibilities}}). If the title is a good candidate for a Wiktionary link, it may also be added.
When appropriate, protection levels are automatically sensed, described and categorized.