I can get information on a Stanley Arms shotgun from my brother. He is never wrong, either.
Mississippi Arms Co was a trade name used by the H.D. Folsom Arms Company on firearms made for the Shapleigh Hardware Company of St. Louis, MO.
Most likely a store brand.
Contact information is listed on their website
Stanley Motor Carriage Company was created in 1902.
The company that is listed in the related links IS NOT the Buffalo Arms in question that made Buffalo Arms Derringers. The company went out of business long ago, and there are no known websites, or information regarding them.
No known history published on this company
Here's what little I can find in the Standard Catalog. Incorporated in 1902. Used the names Union Fire Arms, Union Arms Company, Illinois Arms Company and Bee Be Arms Company. In 1917 the company was either bought up or absorbed by Ithaca Gun Company. They manufactured slide action shotguns, hammerless doubles, a few single shot shotguns, and a couple semi-automatic pistols.
This was a trade name distributed by Shapleigh Hardware of St Louis on shotguns made by Crescent Fire Arms (1892-1931) and J. Stevens Arms and Tool Company (1886-1916).
Eastern Arms Company was a trade name used by Sears Roebuck. The guns were manufactured by Meriden Arms, Iver Johnson, Stevens, Savage, and probably others.
I find no listing for "London Arms Co." Provide more information or take the firearm to a local gunsmith for a professional appraisal.
KING NITRO Tradename used by Shapleigh Hardware Company of St. Louis, Missouri on shotguns made by Crescent Fire Arms Company and J. Stevens Arms Company
CRITERION BARRELS is in the Small Arms industry in RICHFIELD, WI. This company currently has approximately 20 to 50 employees and annual sales of $1,000,000 to $4,999,999.
Blue book of gun values
Lefever Arms Company was created in 1883.
Lefever Arms Company ended in 1916.
DuBiel Arms Company was created in 1975.
Browning Arms Company was created in 1927.
Syracuse Arms Company was created in 1888.
Massachusetts Arms Company was created in 1849.
National Arms Company was created in 1865.
ESSEX Tradename used by Belknap Hardware Company of Louisville, Kentucky on shotguns made by Crescent Fire Arms Company. ESSEX Tradename used by J. Stevens Arms Company on rifles and shotguns.
Oxford Arms Company: Trade name used by the H. & D. Folsom Arms Company on firearms made for the Belknap Hardware Company of Louisville, Kentucky. Folsom had guns manufactured by a subsidiary company, Crescent Arms, and also imported many from a variety of Belgian firms. Value will be $50-$75 for a single shot or $100-$150 for a double barrel in "average used" condition.
There was no company with that name. Crescent, Davenport, Stevens, and Pieper (Belgium) all furnished firearms for Shapleigh Hardware with variations of the Central Arms name.