From Nebraska Wesleyan University's 1909 yearbook.

T is for eagle ... which recalls Sean Tejaratchi's A is for Zebra.  From North Texas State Normal College's 1922 yearbook.

From The Face in the Pool, written and illustrated by J. Allen St. John, 1905.

From La Lámpara Maravillosa, Ejercicios Espiritualis by Ramón Valle-Inclán, 1916.

From the University of Missouri's 1901 yearbook.

The Big U says, quoting Tegan Quin:

"You are you because you are you and you were meant to be you so be you proudly."

The Big U is from Wid's Daily, 1919.

May you dream of singing the "A" note in concert tonight.  From The Gates of the Future Thrown Open by Carlotta de Barsy, 1899.  For other meanings of the letter A, see One-Letter Words: A Dictionary.

From Purdue's 1896 yearbook.

Rare to see someone praying to the letter A, in hopes of earning a good grade.  From North Texas' 1918 yearbook.  See Strange Prayers for Strange Times.

"It was the Devil."  From Johns Hopkins' 1896 yearbook.

Illustration from The Face in the Pool, written and illustrated by J. Allen St. John, 1905.

A cursive lowercase v is asking you what's wrong.  From Colorado College's 1969 yearbook.

Nope.  "F" is not just a letter, according to the dictionary of one-letter words.  From Santa Clara's 1986 yearbook.

The Big U says, quoting TobyMac's "It's You":

"(Aye, aye, aye, aye) It's you, it's you."

The Big U is from Wid's Daily, 1919.

These innocent-seeming quizzes invariably have a tricky twist, like how the six W's (who, what, where, when, why, and how) actually include an H.  Days That End in Y by Vikki VanSickle.

From the College of William and Mary's 1922 yearbook.  See How to Hoodoo Hack a Yearbook.