From the University of Wisconsin's 1919 yearbook.

Here are the owls of subtraction.  From Ray's New Primary Arithmetic for Young Learners, Book 1, 1877.

Ghosts arise in Ridley College's Acta Ridleiana, 1968.  See How to Hoodoo Hack a Yearbook.

From Wilmington's 1923 yearbook.

Here's a precursor to Jamiroquai's marvelous lyric, "I steal the moon on silver nights" ("Automaton," 2017).  Not only are silver nights and the moon mentioned in the first stanza, but in the second stanza there's "a little song."  From The Ballad of the Quest by Virginia Sheard, 1922.

A little window into a lost world.  From Shut, 1907.

From the State College of Washington's yearbook of 1912.

"The moon is more complicated than any one expected; it is not simply a kind of billiard ball frozen in space and time, as many scientists had believed" ("The Moon Is More Of a Mystery Than Ever," The New York Times, April 16, 1972).  From Nebelspalter, 1879.

The street light and full moon may be used as coordinates for astral or time travel.  From Wake Forest's 1973 yearbook.

This photograph may be used to facilitate time travel. From Springfield's 1955 yearbook.

From Le Courrier Français, 1891.