Comment by zozbot234

1. Samuel Slater: Textile mill worker → Factory founder

Before: Born to a modest family in England, Slater worked as an apprentice in a textile mill, learning the mechanics of spinning frames.

After: In 1790 he emigrated to the United States, where he introduced British‑style water‑powered textile machinery, earning the nickname "Father of the American Industrial Revolution." He built the first successful cotton‑spinning mill in Rhode Island and became a wealthy industrialist.

2. Ellen Swallow Richards: Teacher → Pioneering chemist and sanitary engineer

Before: Taught school in Massachusetts while supporting her family after her father's death.

After: Enrolled at MIT (the first woman admitted), earned a chemistry degree, and applied scientific methods to public health, founding the first school of home economics and influencing water‑quality standards.

3. Frederick Winslow Taylor: Machinist → Scientific management consultant

Before: Trained as a mechanical engineer and worked on the shop floor of a steel plant, witnessing chaotic production practices.

After: Developed Taylorism, a systematic approach to labor efficiency, consulting for major firms and publishing The Principles of Scientific Management (1911), reshaping industrial labor organization.

4. John D. Rockefeller: Small‑scale merchant → Oil magnate

Before: Ran a modest produce‑selling business in Cleveland, Ohio, struggling after the Panic of 1873 reduced local demand.

After: Invested in the nascent petroleum industry, founded Standard Oil in 1870, and built a monopoly that made him the wealthiest person of his era.

5. Clara Barton: Teacher & clerk → Humanitarian nurse

Before: Worked as a schoolteacher and later as a clerk for the U.S. Patent Office, earning a modest living.

After: Volunteered as a nurse during the Civil War, later founding the American Red Cross in 1881, turning her wartime experience into a lifelong career in disaster relief.

6. Andrew Carnegie: Factory apprentice → Steel tycoon

Before: Began as a bobbin boy in a cotton factory in Scotland, later emigrating to the U.S. and working as a telegraph messenger.

After: Invested in railroads and iron, eventually creating Carnegie Steel Company (1901), becoming a leading philanthropist after retiring.

7. Lillian M. N. Stevens: Seamstress → Temperance leader

Before: Earned a living sewing garments in a New England workshop, a trade threatened by mechanized clothing factories.

After: Joined the Woman's Christian Temperance Union, rising to national president (1898‑1914) and influencing social reform legislation.

8. George Pullman: Cabinet‑maker → Railroad car innovator

Before: Trained as a carpenter, making furniture for a small New England firm that struggled as railroads expanded.

After: Designed and manufactured luxury sleeping cars, founding the Pullman Company (1867) and creating a model industrial town for his workers.

9. Mary Elizabeth Garrett: Schoolteacher → Medical education reformer

Before: Taught at a private academy in Baltimore, earning a modest salary.

After: Used her inheritance to fund the Johns Hopkins School of Medicine (1893), insisting on admission of women and establishing the first women’s medical school in the U.S.

10. Henry Ford: Farmhand → Automobile pioneer

Before: Worked on his family farm in Michigan and later as an apprentice machinist, facing limited prospects as agriculture mechanized.

After: Built the Ford Motor Company (1903) and introduced the moving‑assembly line (1913), making automobiles affordable for the masses.