Frederick J. Klaeber was a German philologist who was Professor of Old and Middle English at the University of Minnesota. His edition of the poem Beowulf, published as Beowulf and the Fight at Finnsburg, is considered a classic work of Beowulf scholarship it has been in print continuously since 1922 and is now in its fourth edition.
Klaeber was born in Beetzendorf, Kingdom of Prussia to Hermann and Luise Klaeber. He received his doctorate from the University of Berlin in 1892. He was invited to join the University of Minnesota as an Assistant Professor of English Philology. He was Professor of English and Comparative Philology from 1898 to 1931. In 1902 he married Charlotte Wahn.
Source: Wikipedia