The Foulk Family Papers consist chiefly of correspondence to Mrs. Foulk from family and friends, letters from Mrs. Foulk to her mother, Mrs. R.H. McDaniel, and son, Henry D. Foulk (1906). There is also correspondence to Mr. Foulk from his relatives. The content of most of these letters concerns family matters and other aspects of the daily lives of their authors. There are passing descriptions of life in Yuba county and San Luis Obispo county. There are also occasional references to woman suffrage issues.

Nina H. Foulk (nee McDaniel) was born in Marysville, Calif. (1846) and died in San Francisco (c1923). Her father was R.H. McDaniel of Marysville (b. 1813). Her letters reveal that she had at least three siblings: R.H. Jr., Eugene and Lizzie (b. 1855). Eugene P. McDaniel was District Attorney of Yuba county during the 1890s and Judge of the Superior Court in 1906.

Collection is open for research.