[…] those shifting names [pronouns], applied to persons according as they are speaking, spoken to, or spoken of […].
- Whitney (1875), Pag. 13

As the two sides of meaning and application in the predicative or verbal roots are verb and noun, so in the demonstrative […] the two sides may be said to be pronoun and adverb.
- Whitney (1875), Pag. 208

In many languages, signs of relationship, abundantly traceable through their whole material, are especially conspicuous in the pronouns; of connection proved by pronominal evidence solely, or chiefly, there are no examples.
- Whitney (1875), Pag. 256

The noun-inflection is shared also by the pronouns, in all the three varieties of case, number and gender.
- Whitney (1875), Pag. 207

The pronouns […] are a class of words in which the suspicion of borrowing is, if possible, even less to be entertained [than in numerals] […].
- Whitney (1875), Pag. 172