Frank Hall Knowlton (September 2, 1860 - November 22, 1926) was an Americanbotanist,ornithologist and naturalist. Born in Vermont, he joined theGeological Survey and took an interest in fossil plants in the local lignite, later becoming a specialist inpaleobotany.
He was born inBrandon, Vermont to a family of old settlers. He went to study atMiddlebury College where he took an interest in natural history, influenced byEzra Brainerd and Henry M. Seely. He received a BS in 1884 and an MS in 1887. He visited the US National Museum in Washington in 1884, while preparing an exhibit for theWorld Cotton Centennial in New Orleans and came in contact with palaeobotanistLester F. Ward there. He later became an assistant to Ward on the Geology Survey, during which time he studied fossil wood in thelignites of thePotomac. He joined the Geological Survey as an assistant paleontologist in 1894 and was promoted geologist in 1907. He joined theColumbian College as a professor of botany and received a PhD in 1896. He received aScD in 1921. He founded the journalThe Plant World in 1897 and edited it for its first seven years.[1]
Knowlton was also interested in birds and in 1909 he producedBirds of the World published as part of the American Nature Series from Holt. His work on Mesozoic and Cenozoic plants occupied much of his research.
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