Married: Ruby A. Sibley (1881 - 1933), born Peru, NY per son Joshua's Marriage Licence
Children: Joshua Allen Otis (b ~ 1903) married Nov. 18, 1923 to Beatrice Cora La Clair of Cherubusco, NY (from FamilySearch), Florence H. Otis (1904 - 1980), married Jerry Hourihan. and Martin A. Otis (b ~ 1908)
Arthur L. Otis was a guide.
Unidentified, undated news clipping:
OTIS RITES HELD AT PAUL SMITHS
SARANAC LAKE—Arthur L. Otis, 63, one of the last of the old school of guides, who made hunting history in the Adirondacks, was buried Friday afternoon from his home in Paul Smiths.
Mr. Otis died suddenly in Webster Wednesday when vacationing with relatives there. He was a lifelong resident of the Paul Smith section, and conducted a number of prominent hunting parties during his many years as a guide.