Keywords: Adelphi Mill 1934.jpg Adelphi Mill Riggs Mill Langley Park Prince George's County MD Library of Congress Prints and Photographs Division Historic American Buildings Survey HABS http //hdl loc gov/loc pnp/hhh md0883 MD 17-CHIL V 1-1<br/> circa 1934 -35 Albert S Burns Photographer PD-USGOV MD 17-CHIL V 1-1 page is/was http //en wikipedia org/w/index php title Image 3AAdelphi_Mill_1934 jpg here All following user names refer to en wikipedia 2008-10-25 13 57 Pubdog 1024×734× 157956 bytes <nowiki> Historic American Buildings Survey Albert S Burns Photographer c 1934-35 RIGGS MILL HABS MD 17-CHIL V 1-1 Library of Congress Prints and Photographs Division Oct 25 2008 Historic American Buildings Surv</nowiki> Adelphi Mill Maryland in the 1930s Albert S Burns |