Which preposition to use with transcendentalists

in Occurrences 2%

Over the heads of these sages his political and metaphysical utterances rolled like harmless thunder, for he was at once a transcendentalist in philosophy and a utilitarian Radical of the purest dye.

for Occurrences 1%

Compare "Hints to Transcendentalists for Working Infidel Designs through Tractarianism," a jeu d'esprit (1840), ib.

Which preposition to use with  transcendentalists