William Ellison Mills

William Ellison Mills (April 28, 1859 – September 18, 1930) was an American leather manufacturer and politician from New York.

Life Mills was born on April 28, 1859, in Gloversville, New York,

After finishing public school at 16, Mills began conducting a retail meat market. In 1880, he joined his brothers Edward H., Leonard C., and Charles O. in paper manufacturing. In 1884, they sold the business and started manufacturing leather under the name Mills Brothers Company. The firm later began manufacturing shoe leather. In 1885, they erected a mill. Mills continued running the business even after the three brothers died. He was also vice president of the City National Bank and Trust Company.

Mills served on the Gloversville City Council. In 1905, he was elected to the New York State Assembly as a Republican, representing Fulton and Hamilton Counties. He served in the Assembly in 1906, 1907, and 1908. During World War I, he directed Liberty Loan drives. In 1926, he was appointed to the Board of the Hudson River Regulating District. He was buried in the family plot in Prospect Hill Cemetery.