In 1958 she was given a traveling lectureship by the Mathematical Association of America and the National Science Foundation, and was funded to give lectures across the country.

[1][2] While at Princeton, and for the following decade, she was a member of the Woodrow Wilson Fellowship Award committee.

She was also a member of the International Federation of University Women awards committee.

Lehr lectured at Swarthmore College in the summer of 1944, and researched at the Institut Henri Poincaré in Paris in 1950.

[1][2] Lehr was honored by Goucher College for her work with a "distinguished citation" in 1954.