Lillian Moller Gilbreth (1878 – 1972) became the first member of the American Society of Mechanical Engineers in 1926 and was one of the first working female engineers to hold a PhD. Also, she was awarded a staggering 23 honorary degrees, was the first honorary member of the Society of Women Engineers, and in 1965 was the first woman elected to the National Academy of Engineering.
In 1984 the US Postal Service issued a stamp in her honour.
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For the new edition of Sunday Stamps-II A to Z, I have decided to show some of the stamps I have got on letters and postcards, related to one topic: women. This is the post for the letter E.