“To me it appears reasonable that we shall be together in the after life as we are here — still pupils in one great school; that the wise will continue to instruct the ignorant, the strong to help the weak, the good to reclaim the erring. But however that may be, none of us can be where God is not.” (J. Frank Thompson)
In “The Universal Fatherhood of God”: the first pamphlet in “The Five Points of Universalism” series, presumably between 1899 and 1935.