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Haag,, b. at Saarlouis, Germany, 10 Jan., 1878. Education: Jesuit scholasticates. Entered the Society of Jesus 1897; ordained 1908; at present, professor of theology, St. Ignatius College, Valkenburg, Holland. Contributor to various periodicals.

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 Hagan,, b. 1873. Education: Clonliffe College, Dublin, Ireland; Irish College and Propaganda, Rome. Ordained 1899; curate in archdiocese of Dublin 1899–1904; vice-rector, Irish College, Rome, 1904–. Author of "Insula Sanctorum" (Rome); translated and edited "Compendium of Catechetical Instruction", 4 vols. (Dublin and New York); contributor to Italian, Irish, and American periodicals.

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 Hagen, ., b. at Germantown, Illinois, 21 May, 1861, d. at Belleville, Illinois, 14 March, 1908. Education: parochial school, Germantown; Franciscan College, Teupolis, Illinois; St. Francis Seminary, St. Francis, Wisconsin; University of Innsbruck. Ordained 1883; pastor at Mt. Vernon, Illinois, 1883–1890; assistant (1890–1896) and rector (1896–1908), cathedral, Belleville; chancellor of the diocese of Belleville up to the time of his death.

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 Hagen,, astronomer, b. at Bregenz, Austria, 6 March, 1847. Education: Stella Matutina College, Feldkirch, Austria; University of Bonn; University of Münster. Entered the Society of Jesus 1863; ordained 1878; professor of mathematics, Stella Matutina College, Feldkirch (1878–1880), and Sacred Heart College, Prairie-du-Chien, Wisconsin (1880–1888); director of the Observatory, Georgetown University, Washington, 1888–1906; director of the Vatican Observatory, Rome, 1906–. Gave the initiative to the publication of the Collected Works of Leonard Euler at the meeting of Naturalists and Physicians at Frankfort-on-the-Main, 1896; has given two new mechanical demonstrations of the earth's rotation on its axis, one by the torsion balance and the other by the Atwood machine, both published in "Specola Vaticana Astronomica", Series 2, Vol. I, presented first part of his work "Die veränderlichen Sterne" the first ever written on this branch of science, at the Jubilee meeting of the German Astronomical Society, Hamburg, 1913. Member of: Astronomical Society of Mexico; American Society of Astronomy and Astrophysics; Astronomical Society (Leipzig); Belgian Astronomical Society; Scientific Society of Brussels; German Mathematical Association; Görres Society; Pontifical Academy of the Lincei; Washington Academy of Sciences; Imperial Leopoldine-Karoline Academy (Halle); Southern California Academy of Sciences; Foreign Associate Royal Astronomical Society. Author of: "Synopsis der Hoeheren Mathematik". Vols. I–III (1891–1905); "Index Operum Leonardi Euleri" (1896); "Atlas Stellarum Variabilium". Series I–VI (1899–1908); "Beobachtungen Veränderlicher Sterne von E. Heis und A. Krueger" (1903); contributor of astronomical articles to "Stimmen aus Maria-Laach." ARTICLES:.

 Hagerty,, A.B. Ph.d., sociologist, economist, b. in La Porte County, Indiana. Education: Universities of Indiana, Chicago, Wisconsin, Pennsylvania, Berlin, and Halle. Teacher, High School, La Porte, Indiana, 1892–1896; assistant professor of economics and sociology (1901–1904), acting head of department (1903–1904), professor of economies and sociology and head of department (1904– ), dean of the College of commerce and journalism, Ohio State University. Former Fellow of the Universities of Wisconsin and Pennsylvania. Member of: American Economic Association; American Sociological Society; National Conference of Charities and Corrections; Ohio State Conference of Charities and Corrections (President, 1909); National Conference of Catholic Charities; Catholic Educational Association; Phi Beta Kappa Society; Knights of Columbus; various philanthropic associations in Ohio. Collaborator in "International Encyclopedia", contributor of economic and sociological articles to various publications.

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 Hamilton,, A.M. LL.D., lawyer, b. in Maryland. Education: Georgetown University, Washington, D. C. Admitted to the Bar of the Supreme Court of the District of Columbia 1875; practising lawyer 1875–; later admitted to the Bar of the Supreme Court of the United States; has held the post of professor (at present of legal ethics), Georgetown University School of Law, for over twenty-five years; senior member of the firm of Hamilton, Yerkes, and Hamilton.

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 Hammer, Reverend Bonaventure, O.F.M., b. at Durmersheim, Baden, Germany, 23 June, 1842; d. at Lafayette, Indiana, 19 January, 1917. Education: St. Philomena's Parochial School, Pittsburg, and St. Vincent's College, Westmoreland County, Pennsylvania. Emigrated with his parents to the United States 1846; entered the Franciscan Order 1860; ordained 1865; successively stationed at Cincinnati, Ohio, Louisville, Kentucky, Hamilton, Ohio, Oldenburg, Indiana, and Detroit, Michigan, 1865–1882; stationed at Lafayette, Indiana, devoting himself principally to literary work, 1882–1901; at San Diego, California, 1901–1904; assistant, St. Boniface's Church, Lafayette, Indiana, 1904–1917. Author of over fifty books, 300,000 copies having been printed of one of his books of devotion; translated into German Wallace's "Ben Hur" (1888; 119th edition 1898); contributed to Catholic magazines.

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 Handley,, B.A., b. in Rome, Italy. Education: private; Ferrari Art School, Rome; University of Chicago; Columbia University, New York. Came to the United States 1898; has devoted her time principally to the study <section end=Handley, Marie Louise Adelaide Clare/> 72