Statistics for occurrence #1 of “H. N. Ackerman” in chapter 9, section c.9.3, page 41 of Medford Historical Society Papers, Volume 13.:

... a sermon by the pastor on The Power of the Church in the Community, and by a special communion service. At the evening service were addresses on The Sunday-school and Christian Endeavor Society by H. N. Ackerman , and The Early History of the Church and Parish, by D. H. Brown. On Monday, June 14, there was a banquet in the vestry, with brief addresses, and a service in the audience room, with addresses by R...
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H. N. Ackerman 5 2 1 0 0 user votes

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