Cleveland, O.: The Single Letter Ohio Kept for a Century

Every ramble turns up a "did-you-know" eventually. This one started with an old business card, all curling ink and calligraphy: "Geo. W. Auer, Tailor, 635-637 Lorain St., Cleveland, O." No comma-Ohio, no OH — just a single letter doing the work of a whole word. We figured it was a stylistic flourish. It wasn't. It was federal policy, and it outlasted most of Cleveland's actual nicknames.

A Single Letter, By Order of the Post Office

In 1831, the Post Office Department published its first official list of state abbreviations — the Table of Post Offices in the United States. Most states got two letters or more: Connecticut became "Ct.," New York became "N.Y." Ohio was the outlier. It got exactly one: "O."

Nobody voted on this. It's just how the list came out, and once the Post Office sanctioned it, printers, publishers, and everyday Clevelanders ran with it. For the rest of the 19th century and well into the 20th, "Cleveland, O." was simply how the city's name got written down.

A Habit That Outlasted the Rules

Twice, the Post Office tried to walk it back. In 1874 and again in 1943, the official postal guide asked people to spell "Ohio" out in full — no more single letters. Printers mostly ignored them. The habit had a hundred years' head start on the correction.

You can still find "Cleveland, O." all over the record if you go looking. Charles Whittlesey's Early History of Cleveland, Ohio — the first book-length history of the city, published in 1867 — lists its own place of publication as "Cleveland, O. : Fairbanks, Benedict & Co., printers." Decades later, Enakopravnost, the daily newspaper serving Cleveland's large Slovenian community from 1918 to 1957, carried the same line in its own masthead.

And on a tailor's business card advertising a shop at 635-637 Lorain St. — the same card that inspired our Cleveland O Tailor Cap — there it is again, in the last ornate flourish of the calligraphy: Geo. W. Auer, Tailor, ... Cleveland, O.

The End of an Era, By ZIP Code

What finally killed "O." wasn't a style guide. It was a number. In 1963, the Post Office introduced the five-digit ZIP code, and suddenly every state name needed to fit on one line alongside a city, a street, and five new digits. Every state got exactly two letters, no periods. Ohio became "OH," and a hundred and thirty years of habit ended almost overnight.

Wearing the Record

We didn't invent this one — we just found it, the way you find most good history: by looking twice at something everyone else has walked past. The Cleveland O Tailor Cap carries that old single letter forward, stitched onto something built for the ground you cover next.

Shop the Cleveland O Tailor Cap →