Statistics for occurrence #1 of “Mrs. Mary Allen” in chapter 26 of L. P. Brockett, Women's work in the civil war: a record of heroism, patriotism and patience:

... Miss N. L. Ostram, Mrs. Anne Ward, Miss Isabella M. Hartshorn, Mrs. Mary Ellis, Mrs. L. E. Lathrop, Miss Louisa Otis, Mrs. Lydia Leach, Mrs. Mary Andrews, Mrs. Mary Ludlow, Mrs. Hannah A. Haines and Mrs. Mary Allen . Most of these were from St. Louis or its vicinity. The following, also for the most part from St. Louis, were appointed somewhat later by the Western Sanitary Commission, but rendered excellen...
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