Capt. Mayne Reid
3 appearances across 3 restored issues — every one readable in full, free.
Beadle's New York Dime Library, No. 55 — 1878 “The Scalp-Hunters: A Romance of the Plains” (serial) · p.1 Read the full issue (48 pages) → 
Beadle's Half Dime Library, Vol. III, No. 78 — 1879 “Blue Dick: The Yellow Chief's Vengeance” (serial) · p.1 Read the full issue (16 pages) → 
Beadle's New Dime Novels: Blue Dick — 1883 “Blue Dick; or, The Yellow Chief's Vengeance: A Romance of the Rocky Mountains” · p.3 Read the full issue (100 pages) → Appearances are extracted from each issue's own printed contents page; entries we can't read confidently are withheld rather than guessed.