No biographical data has been found about Arthur M. Grainger, and it is not known whether the name was real or a pseudonym. The earliest story found with this signature was "Golden Feather," which appeared in the New York Mercury, XXII, July 7, 1860, and was reprinted by Beadle several times, first in American Tales, No. 57, in 1869.
American Tales. No. 57
Starr's Fifteen Cent Illustrated Novels. Nos. 13, 18
Starr's American Novels. No. 191
Cheap Edition of Popular Authors. No. 28
Dime Library. No. 78