written by Frank Jr. and Ernestine, was made into a motion picture sequel in 1952. Frank Jr. also paid tribute to his mother in Time Out for Happiness (1972). In 2018, the College of Engineering at Purdue University established the prestigious Lillian Gilbreth Postdoctoral Fellowship Program to attract and prepare outstanding individuals with recently awarded Ph.D.'s for a career in engineering academia through interdisciplinary research, training, and professional development. Awards and honors Gilbreth received numerous awards and honors for her contributions. Gilbreth is the recipient of twenty-three honorary degrees from schools such as Rutgers University, Princeton University, Brown University, Smith College, and the University of Michigan. Her portrait hangs in the National Portrait Gallery. The Gilbreth Engineering Library at Purdue University is named in honor of Lillian and Frank Gilbreth. In 1921, Lillian Gilbreth was the second person to be named an honorary member of the American Society of Industrial Engineers. She joined the British Women's Engineering Society in 1924. Gilbreth was accepted to the membership of the American Society of Mechanical Engineers in 1926, becoming its second female member. In 1931 she received the first Gilbreth Medal, which was initiated in honor of her late husband. In 1941 the Purdue University chapter of Mortar Board, a national honor society, named Gilbreth an honorary member. In 1944 the American Society of Mechanical Engineers awarded Gilbreth and her husband (posthumously) the Henry Laurence Gantt Medal for their contributions to industrial engineering. In 1950 Gilbreth became the first honorary member of the newly created Society of Women Engineers. In 1951 she was awarded the Wallace Clark Award. The University of California's alumni association named Gilbreth the 1954 Alumna of the Year. In 1965 Gilbreth became the first woman elected to the National Academy of Engineering. In 1966 Gilbreth became the first woman to receive the Hoover Medal. She was made an honorary Member of the British Women's Engineering Society in 1967. Gilbreth was a recipient of Gold Medal award from the US National Institute of Social Sciences. In 1984 the U.S. Postal Service issued a 40-cent Great Americans series postage stamp in Gilbreth's honor, In 1995, Gilbreth was inducted into the US National Women's Hall of Fame. Selected published works A Primer of Scientific Management (1912), co-authored with Frank B. Gilbreth The Psychology of Management: the Function of the Mind in Determining, Teaching and Installing Methods of Least Waste (1914) Motion Models