In 1882 Stoddard invented "a camera attachment for use in dry-plate photography and to perfect the -magnesium flash- for taking night photographs.

"[2] In early 1892, he was invited to give an illustrated lecture to the New York State Legislature that was influential in the creation of the Adirondack Park.

His trips became the basis for illustrated lecture tours, and photographic travel books, The Cruise of the Friesland and The Midnight Sun.

In 1906, he started Stoddard's Northern Monthly, a short-lived magazine that featured articles on the Adirondacks, fiction and foreign travel.

Stoddard died at his home in Glens Falls, New York, April 26, 1917, and is interred in Pineview Cemetery.