Wie trouwde met Maude Kellerman?

Maude Kellerman Swingle (1888–1992) was an American botanist who co-authored works with her husband the botanist Walter Tennyson Swingle. She was educated at the Ohio State University and worked as a librarian at the United States Department of Agriculture. The standard author abbreviation M.Kellerm. is used to indicate this person as the author when citing a botanical name.

Walter Tennyson Swingle (January 8, 1871 – January 19, 1952) was an American agricultural botanist who contributed greatly to the classification and taxonomy of citrus.