On the net I see that Davenport rifles were manufactured in Norwich, CT, but I remember reading somewhere that they had factories throughout the south.  Does anyone know if this is true or have suggestions where I can look for more information?

Christian

Dave,
Your info on H&A is slightly incorrect. Savage did take over their plant during WWI, but after WWI Marlin Firearms Co. took over production of H&A guns in 1922. 
Marlin proceeded to build many of the pistols, and shotguns that H&A built before WWI, and did so using up pre-War parts. About the same time Marlin ended up in bankruptcy, and was sold to the property owner Frank Kenna, in 1923. At that time Kenna saw no reason to continue the H&A line as Marlin had only assembled guns, and had not seen fit to begin production. 
The H&A line died with the rebirth of Marlin Firearms Co.
Hope this helps.

H & A tried to recapitalize with a new-reorgization plan and stock issue but it didn't sell in 1915.People who were there in 1915 like my Grandfather told me that business was DEAD, because everyone was scared of the war, it wasn't untill late in 1915 that the allies relized that they were short of EVERYTHING, and orders flooded in and business started to come to life and boomed.