I'm writing an article that cites some scientific works of a religious sister. I noticed that some authors cite her works including the title "Sister", as in "Sister Surname [ref] was the first..." or "see (Sister Surname, year)", but other authors use only the surname.
Of course, this can be a matter of personal preferences. However, I wonder if the scientific community has considered the issue of using or not religious (or other scientific-unrelated titles) when referring to an author. On the one hand, I understand the use of the title as a courtesy. On the other hand, I understand if somebody does not want to use the title because she/he thinks that it is irrelevant to the scientific work, or even does not recognize it.
Are there some recommendation about that?