B. G. Jefferis and J. L. Nichols, Searchlights on Health — Etiquette on the Street (1919)
“ In walking with a lady who has your arm, should you have to cross the street, do not disengage your arm and go around upon the outside, unless the lady's comfort renders it necessary. In walking with a lady, where it is necessary for you to proceed singly, always go before her. ”
