Horst, M. (1939). Grandmother Erb: A biographical sketch of Mrs. Jacob B. (Leah) Erb, the mother of the late Tillman M. Erb and grandmother of Allen H. Erb, Superintendent of the Mennonite Hospital and Sanitarium, La Junta and of Paul Erb, Professor at Goshen College. Reading, Pa.: Margaret Horst.

Horst, Margaret. Grandmother Erb: A Biographical Sketch of Mrs. Jacob B. (Leah) Erb, the Mother of the Late Tillman M. Erb and Grandmother of Allen H. Erb, Superintendent of the Mennonite Hospital and Sanitarium, La Junta and of Paul Erb, Professor At Goshen College. Reading, Pa.: Margaret Horst, 1939.

Horst, Margaret. Grandmother Erb: A Biographical Sketch of Mrs. Jacob B. (Leah) Erb, the Mother of the Late Tillman M. Erb and Grandmother of Allen H. Erb, Superintendent of the Mennonite Hospital and Sanitarium, La Junta and of Paul Erb, Professor At Goshen College. Reading, Pa.: Margaret Horst, 1939.