Emilie Foster

Project Gutenberg and library catalogs identify Emilie Foster as the author of The Haven Children; or, Frolics at the Funny Old House on Funny Street, a children's book that has remained available through public-domain collections. Those same records link the author name to Emilie Foster Halsey Keene, which appears to be the fuller form of her name.

Beyond that, confirmed biographical details are scarce. I wasn't able to verify a solid, source-backed life summary for an author specifically matching Emilie Foster, born 1834, so it's best to treat her as a partly obscure figure whose work survives more clearly than her personal history.

Because the available evidence is thin, the safest picture is of a 19th-century author remembered chiefly for a single surviving children's title rather than for a well-documented public career.