Green’s Dictionary of Slang

a beggar, a tramp.

1908		W.H. Davies Autobiog. of a Super-Tramp 211: We had scarcely set foot outside the lodging house, when I saw this downrighter dodge in and out of shops with an astonishing alacrity, more like a customer than a beggar.
1935		Thieves Slang ms list from District Police Training Centre, Ryton-on-Dunsmore, Warwicks 4: Downrighter: Beggar.