This small collection consists primarily of reminiscences of Flora Spiegelberg, including original typewritten manuscripts of brief articles and published articles. Also included is a manuscript about Flora Spiegelberg and the Spiegelberg family written in 1975. The articles by Spiegelberg primarily concern life in the Territory of New Mexico in the late 19th century. Other articles are about New York City where the Spiegelbergs lived after leaving New Mexico.

Collection consists of letters, newspapers and articles tracing the family's history (circa 1846 to date), and poetry and other writings of family members, especially of Flora Spiegelberg, wife of Willie, one of the five brothers.