Analysis of information sources in references of the Wikipedia article "Given name" in English language version.
In the last century and well into the present one, grown-up British people, with rare exceptions, addressed each other by their surnames. What we now call first names (then Christian names) were very little used outside the family. Men who became friends would drop the Mr and use their bare surnames as a mark of intimacy: e.g. Holmes and Watson. First names were only generally used for, and among, children. Today we have gone to the other extreme. People tend to be on first-name terms from the moment of introduction, and surnames are often hardly mentioned. Moreover, first names are relentlessly abbreviated, particularly in the media: Susan becomes Sue, Terrence Terry and Robert Bob not only to friends and relations, but to millions who know these people only as faces and/or voices.quoted in Burchfield, R. W. (1996). The New Fowler's Modern English Usage (3rd ed.). Oxford University Press. p. 512. ISBN 978-0199690367.
