Which preposition to use with procter

in Occurrences 3%

Writing to Procter in January, 1829, Lamb calls Miss Isola "a silent brown girl," and in his letter of November, 1833, to Mr. and Mrs. Moxon, he says: "I hope you [Moxon] and Emma will have many a quarrel and many a make-up (and she is beautiful in reconciliation!) ..."

by Occurrences 1%

He shocked some of his relatives by arriving at their country house astride a donkey; and he amazed the Procters by starting out one evening to set fire to Drury Lane Theatre with a lighted five-pound note.

Which preposition to use with  procter