William C. E. Thomas was the first mayor of Green Bay, Wisconsin

Green Bay, Wisconsin

Green Bay is a city in and the county seat of Brown County in the U.S. state of Wisconsin, located at the head of Green Bay, a sub-basin of Lake Michigan, at the mouth of the Fox River. It has an elevation of above sea level and is located north of Milwaukee. As of the 2010 United States Census,...

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He was born in Muncy, Pennsylvania

Muncy, Pennsylvania

For other places named 'Muncy', please see Muncy .Muncy is a borough in Lycoming County, Pennsylvania, in the United States. The name Muncy comes from the Munsee Indians who once lived in the area. The population was 2,663 at the 2000 census. It is part of the Williamsport, Pennsylvania...

, and moved to Green Bay in 1849. He became a tanner

Tanning

Tanning is the making of leather from the skins of animals which does not easily decompose. Traditionally, tanning used tannin, an acidic chemical compound from which the tanning process draws its name . Coloring may occur during tanning...

 and became mayor in 1854. He was an agent of the American Express

American Express

American Express Company or AmEx, is an American multinational financial services corporation headquartered in Three World Financial Center, Manhattan, New York City, New York, United States. Founded in 1850, it is one of the 30 components of the Dow Jones Industrial Average. The company is best...

office from the establishment of the Green Bay branch in 1857 until 1871. He was Green Bay's city clerk from 1858 to 1873, and was the city's Postmaster from 1872 until his death.