Powell Foulk Clayton descended from English Quaker settlers who followed William Penn to America. Powell’s father John Clayton was a Pennsylvania orchard keeper and carpenter. His mother Ann Clark Clayton was the daughter of a loyal British Army officer. Powell was born on August 7,1833 and enjoyed a peaceful childhood playing among the abundant apple, cherry and peach trees in his father’s orchard with his three brothers, Thomas, William and John. Powell attended the Partridge Military Academy in Bristol, Pennsylvania and studied civil engineering in Wilmington, Delaware, instilling skills and discipline that he would rely on for his entire life. Clayton ventured into adult life at the age of 22 by moving to Leavenworth, Kansas in 1855 to work his trade as a surveyor. The Kansas territory had been opened to non-native settlement in 1854 and many booming towns such as Leavenworth sprang to life along the Missouri River. Clayton’s surveying work in Leavenworth was so satisfactory that he was elected City Engineer and was responsible for surveying all city streets, building bridges and sidewalks, and erecting lamp posts. Clayton spent his 6 years in Leavenworth residing at the Mansion House, a large hotel popular with free state settlers opposed to slavery.