Born: November 22, 1852, New York City.
Died: June 15, 1936, Brookline, Massachusetts.
Buried: Brookside Cemetery, Deerfield, Massachusetts.
Isaac was the son of Edward Erastus Rankin and Emily Watkinson, and husband of Martha Clark.
He graduated from Princeton University (AB 1873, AM 1876) and Union Theological Seminary (BD 1877).
The 1880 census listed him as a clergyman in Hartford, Connecticut.
He was literary editor of The Congregationalist in Boston, Massachusetts.
His other works include:
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