De Amerikaanse schrijver Mark Twain was best ijdel, zo blijkt uit een relaas van de schilder Sam Woolf, die hem in 1909 portretteerde.
"If he was vain about anything in his personal appearance, it was his hair; and that I should
get it right in the picture seemed to give him the greatest concern. Several
times he gave me suggestions as to the way he wore it, asking me to wait until
he went upstairs and brushed it. Then he would come down with it rearranged,
and I would get to work again." Aldus Woolf. Deze tekening is van 6 jaar eerder, door de Everett Shinn, die ook het kapsel als hoofdzaak nam. Te koop bij Sotheby's New York.