Mary Haslock

Hasloch, Mary. Author of "Christian, work for Jesus" (Sunday School Festival), in the Congregational Church Hymnal, 1887, &c.

--John Julian, Dictionary of Hymnology, Appendix, Part II (1907)

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Hasloch, Mary, p. 1569, ii., daughter of the Rev. John Hasloch, at one time Congregational Minister at Kentish Town, London, was born July 2, 1816, and died March 11, 1892.

--John Julian, Dictionary of Hymnology, New Supplement (1907)