Carthage Historic Preservation, Inc.
Mailing Address:  P.O. Box 375 | Carthage, MO  64836
Phelps House:  1146  Grand Avenue, Carthage, MO
417.358.1776

Gustavius Adolphus “G.A.” Cassil (1826-1909) was a man of vision and enterprise whose life helped shape the future of Carthage, Missouri. Born in Steubenville, Ohio, in 1826, he grew up in a family of entrepreneurs and learned early the value of hard work. As a boy, he assisted in his father’s businesses, which included a newspaper, a retail store, and even a railroad venture.

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At just fourteen years old, Cassil lied about his age to enlist in the Mexican War, an early sign of the boldness that would mark his life. After the war, he joined the California Gold Rush, where his success in placer mining provided him with the means to return to Ohio in 1851 and marry Emily Pickett.

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Cassil’s restless ambition soon led him into the oil business in West Virginia. In 1866, he traded his interests there for 57,000 acres of land in southwest Missouri. Seeing opportunity in the recovering town of Carthage after the devastation of the Civil War, he made the bold move west and never looked back.

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Cassil quickly established himself as a leader in business and civic life. In 1868, he founded the Bank of Carthage, serving as its first president until 1880. He also became one of the city’s original trustees and played a central role in Carthage’s incorporation. With Judge Malcolm McGregor, he developed the Cassil Addition, one of the first residential subdivisions west of the square, helping guide the city’s growth.  In 1907, he donated a lot for Carthage’s first YMCA, demonstrating his lifelong commitment to improving the city’s quality of life.

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What was once a fashionable neighborhood now consists of eight homes along Central Avenue.  The beautiful limestone entryway was moved to Carter Park in the 1930s.  The first Cassil family home burned before the family moved in and a second home was built in 1900.  Part of that home was later moved to Blanche Street and moved again to Red Oak II where it is now known as the Geranium House.