I have a single barrel 8 gauge made by Hopkins and Allen and they had some ties to Davenport.
William Hastings Davenport (1828-1904) owned several gun companies over the years: The Davenport Arms co. 1870's, Bay State Arms 1883, and finally W.H. Davenport Fire arms Co. 1890, He died in 1904 and 5 years later the company was purchased from his widow by Hopkins & Allen.
All Davenport shotguns have a patented key take-down on the right side of the frames. Pat. Dates are Dec. 15, 1891 - Aug. 11, 1896 - Aug 14, 1900 - May 27, 1902.
Hope this gets you started.
