Lilian "Lillie" Belle Bridgman (1866–1948) was an American scientist and architect. A childhood accident resulted in a broken leg and contributed to a lifelong impairment that required her to use a crutch. This condition may have changed her focus from helping with outdoor farm work to studying, writing and reading. It did not prevent her from hiking in the Berkeley Hills and the Sierras. After working first as a science teacher and writer, she changed her profession in mid-life and followed her dream of becoming an architect.