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History · San Mar

16% of San Mar’s homes were built before 1940

Below: maps from 1912 on.

0on the National Register
16%homes built before 1940
Add an old photoShare a memory
Photo: Mr. Matté (if there is an issue with this image, contact me using this image's Commons talk page, my Commons user talk page, or my English Wikipedia user talk page; I'll know about it a lot faster) · CC BY-SA 4.0

What stands out about San Mar’s past

Read from the archive, the National Register and the record. The page puts what stands out first.

A history waiting to be writtenNo old photos of San Mar are in the public archives yet. The rest are in attics and albums.On the map since 19125 editions of the USGS map, 1912 to 1985. Watch San Mar change.
★ What stands out · Help out

Start San Mar’s collection

The first neighbors to add old photos shape how San Mar’s history is told.

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
0 of 10 decades. The empty ones are waiting for someone’s album.
Share a family photoSign in to add one+10
On the map

San Mar on the map, 1912 to 1985

Every edition of the U.S. Geological Survey’s map of San Mar. Tap a year, or press play to watch the town change.

San Mar on the 1912 USGS mapSan Mar on the 1944 USGS mapSan Mar on the 1953 USGS mapSan Mar on the 1971 USGS mapSan Mar on the 1985 USGS map1912Hagerstown sheet · 1:62,500

U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of San Mar.

The story

How San Mar came to be

From Wikipedia’s history of San Mar.

Read it all →

Mannheim was listed on the National Register of Historic Places in 1979.

Text from Wikipedia, licensed CC BY-SA 4.0.

By decade

No old photos in the archives yet

Weddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.

Be the first to add onePhotograph a print flat, in daylight, no flash.
Add from your album
Famous people

Famous people close to San Mar

Nobody well known was born in San Mar itself, so here are the best known from just nearby.

See all →
LA KnightAmerican professional wrestler · b. 1982
Dennis ScottAmerican basketball player · b. 1968
Aaron BrooksAmerican wrestler · b. 2000
Louis E. McComasAmerican politician · b. 1846
E
Euge GrooveAmerican musical artist · b. 1962
D
David SpanglerAmerican politician · b. 1796
Stories next door

History across the town line

Each neighbor’s History grade, on the same three inputs.

Mount Lena1 historic placenot graded: under 1,000 residents or part of its town

Questions about San Mar’s history

Memory lane

What the archives can’t tell you, neighbors can.

Town Square →
Start a conversation
Sources

Where this page comes from

Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021). How TownRatings grades history →

From Wikipedia, U.S. Geological Survey historical maps and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.