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This is H. Clay Trumbull, who was a well known man in his time, indeed his book on child-rearing is still being published.
I own his Civil War diaries and other papers. He wrote many books, including a biography of his dear friend Henry Camp, who was killed in the Civil War ("The Knightly Soldier").
My grandfather purchased a house built by H. Clay Trumbull's son in Philadelphia and my grandfather stored these things for years, not realizing what they were.