Which preposition to use with lector

of Occurrences 3%

39, 40.Peruse this ye incredulous lectors of Baron Munch-Hausen, and Colonel Nimrod.

in Occurrences 1%

John Sebastian Cammermeyer Welhaven was born in Bergen in 1807, entered the university in 1825, became a Lector in 1840, and afterward Professor of Philosophy.

Which preposition to use with  lector