William W. Blackman (1857-?) was born in Wisconsin and died in an unknown location. He married Emma S. Gillette in Fremont, Nebraska, in 1887 and worked as a grocer. His younger sister, C. Lulu Blackman, joined The First Church of Christ, Scientist, in Boston, Massachusetts, in 1894 and was listed as a practitioner and teacher in the directory of The Christian Science Journal.

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