The credit "A Popular Author" was used widely; the fact that many books shared this attribution is not meant to imply that they were written by the same person.
Items with "Popular Author, A" as Credited Author
Eagle Library
69. His Perfect Trust114. Half a Truth
Laurel Library
73. Half a TruthLove Story Library
78. Half a TruthNew Bertha Clay Library
45. His Perfect TrustThe New Sensation Novels
11. Beautiful Minnie; or, The Smuggler RingThe New York Fireside Companion
Half a TruthOld Cap. Collier Library
804. Frank Bolton's chase; or, A long hunt in the dark806. Frank Bolton's reward; or, out of darkness into light