author
Best known as a co-author of detailed country handbooks on Eastern Europe, this writer helped shape clear, research-based guides to Albania, Bulgaria, and Romania. His surviving public record is sparse, but the books themselves suggest a practical, informative style aimed at helping readers understand complex societies.

by Sarah Jane Elpern, William Giloane, Eugene K. Keefe, James M. Moore, Stephen Peters, Eston T. White

by Donald W. Bernier, Lyle E. Brenneman, William Giloane, Eugene K. Keefe, James M. Moore, Neda A. Walpole

by Violeta D. Baluyut, William Giloane, Eugene K. Keefe, Anne K. Long, James M. Moore, Neda A. Walpole
William Giloane is credited as a co-author of several volumes in the Area Handbook series, including Area Handbook for Albania, Area Handbook for Bulgaria, and Area Handbook for Romania. Project Gutenberg lists those three titles under his name, and the Albania and Romania volumes identify him among the team of co-authors.
The Area Handbook books were prepared through Foreign Area Studies at The American University as compact reference works on countries' social, political, economic, and military institutions. The Albania volume notes that research and writing were completed in 1970 and published in 1971, while the Romania volume says its research was completed in 1972 and published that year.
Beyond those collaborative works, I could not confirm many personal biographical details from reliable public sources. Because of that, the clearest picture of his career comes through the books themselves: careful, multi-author surveys designed to give readers a grounded overview of national history, government, and everyday life.