Herta Freitag
Herta Taußig Freitag (1908 - 2000) Austrian mathematician, best known for her work on the Fibonacci numbers.
Freitag has Erdős number (http://planetmath.org/ErdHosNumber) 3. With Daniel Fielder she published an article in Applications of Fibonacci Numbers 8, while Fielder co-authored with Hoggatt an article in Fibonacci Quarterly 11, Hoggatt in turn wrote with Erdős an article “On additive partitions of integers” in Discrete Mathematics 22.