Early Secondhand Details about Joseph Smith’s First Vision in 1830-1833?

A late thirdhand account of the First Vision from John Alger in 1893 may be corroborated by some early secondhand (esoteric) references in some songs and hymns recorded in 1833, which may also have connections to a recorded revelation in 1830.

On Lineages and Transmissions of Mystical Knowledge and Spiritual Power

Can mysticism or spirituality be transmitted from one person to another? I suggest yes and no.